What tennis pros look at when they pick a ball

It all comes down to fluff.

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Before each serve, most professional tennis players go through a ritual to get in the zone. Novak Djokovic will bounce the ball with his racket, then with his hand. Rafael Nadal will usually pull his shorts and the sleeves around his shoulders, then touch his nose and tuck his hair behind his ears. All very distinct routines. But there’s one tennis ritual nearly every pro tennis player does: choosing a specific tennis ball. A common belief among players is that the ball they choose can help them win.

But there’s real physics at play behind this ritual - and It all comes down to the fuzz. For a faster serve, players try to find a compact ball. For a slower serve, they feel for more fuzz. The idea is that a fluffier ball is more likely to be slowed by drag as it travels through the air - and that choosing the right level of fuzz can help the serving player defeat their opponent.

More information on the aerodynamics of sports balls: people.stfx.ca/smackenz/cours...

Michael Kosta's podcast, Tennis Anyone: open.spotify.com/show/2ca3fTF...

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  1. RT-106 Music

    RT-106 Music

    2 小时 前

    I usually make sure the ball is round and not square or pyramid shaped.

  2. A Inabo Tishikha

    A Inabo Tishikha

    19 小时 前

    Whaaaat??? Michael Acosta was a pro Tennis player.

  3. Karthesios


    2 天 前

    Gratuitous red circle in thumbnail. Five yard penalty.

  4. Hot Ice Entertainment

    Hot Ice Entertainment

    2 天 前

    WoW...Micheal Kosta used to be a professional tennis player??? When did he make the switch to comedy??? This is so dope...

  5. Mita Marzandika

    Mita Marzandika

    2 天 前

    Finally I got the answer 😂

  6. Douglas Hagan

    Douglas Hagan

    3 天 前

    I think the routine has to do with it you want to play with one shot at a time even if you've lost three points in a row it has no meaning whatsoever everything is one shot at a time and so what they do is if they lose a point they start a routine because once they finish this routine which might be slap themselves in the thigh or playing with their hair or something it's kind of like a reset the economy it it it's okay this that point is gone forever the only thing that matters is right now so the focus is the mindset that is always in right now play one point at a time that's the secret to tennis is one shot at a time one point at time you don't want to think forward or you don't want to look back you're always want to be in the here and now that's a mindset mindset is 100% of the tennis game they already know by the handshake whether he's going to win the match or not it's all they already know whether they're going to win or lose because of their mindset going out there if you're confident you have a like a 90% chance of winning but if you walk out there knowing that you're going to lose because you've been beaten so many times before by the same opponent it's almost like you just give up by the time you do the handshake it's a done deal

  7. Douglas Hagan

    Douglas Hagan

    3 天 前

    Right because they want to cut the water you trying to make a cut when you're doing judo to throw the guy everything's a cut like you're cutting the tennis ball trying to get a sharper angle or the cut is what puts his spin on the ball and this is a precise cut at the top level whoever can cut it cleaner or more precise has either a better top spin than the other player or a better slice so the better you get the better you are able to cut the cheese at this point it's your serve and everything that boils down to the cut making the cut has to do with how you cut the ball and that's fluff has a lot to do with the drag

  8. Douglas Hagan

    Douglas Hagan

    3 天 前

    Right that second ball you want to put a lot of spin on it cuz you want to control it but usually at the top level they're willing to take a huge risk on their first serve to get an ace so they really don't care if the first serve goes in because they know they've got a really good spin second serve that goes in 100% of the time

  9. non ya

    non ya

    4 天 前

    The honorable novel unequivocally remain because mitten ethically grip up a judicious fiction. disturbed, hysterical network

  10. Sarabjeet Sanghera

    Sarabjeet Sanghera

    4 天 前

    It needed NASA ? To know if fluff will create drag?

  11. Albert Aeruthayan

    Albert Aeruthayan

    4 天 前

    Kosta was a pro tennis player WHATTT!

  12. Fahad Hassan

    Fahad Hassan

    5 天 前

    This is to out of context 4:20 oh 420 omg this keeps getting better

  13. Andrea berry

    Andrea berry

    5 天 前

    🎾🎾🎾 🎾 Wilson > Penn

  14. CK Chatta

    CK Chatta

    5 天 前

    *watches The Daily Show for years* Vox: 😏bet you didnt know Michael K. Is a professional tennis player 😏

  15. Leo Andhika Kurniawan

    Leo Andhika Kurniawan

    5 天 前


  16. Orange M

    Orange M

    5 天 前

    Michael Kosta was a professional tennis player?? Didn't know him until the Daily Show. I'm impressed.

  17. Steven O'Brien

    Steven O'Brien

    6 天 前

    Kind of a fluff piece, tbh

  18. WebTennis24


    6 天 前

    That is good to know 👍👍👍 Thank you!

  19. Yenne Jaber

    Yenne Jaber

    7 天 前

    Oh wow, Medvedev is featured here 😲. I guess it's because he serves great. I've seen him in a video where after a game on his serve, he asked to be tossed that same ball again for his next serve.

  20. Rr Rr

    Rr Rr

    9 天 前

    serena williams is a mountain full of steroids

  21. koda


    11 天 前


  22. djfunkychicken


    11 天 前

    Did a bit of research.. apparently the speed of the oldest and fluffiest ball used versus a new one accounts for 1 to 1.5km/h A difference which is roughly the speed of a baby crawling on the floor

  23. Pharaoh XVI

    Pharaoh XVI

    11 天 前

    "Yes, the Serena Williams" whats the point of this comment? She's not that huge, chill out feminists

  24. Leuri


    13 天 前

    Michael Kosta is a former professional player?? Lol

  25. Tuomasd


    14 天 前

    My main man Fuzzy Dunlop does the same thing 😂😭

  26. Brian Wang

    Brian Wang

    14 天 前

    Rituals relieve their stress and encourage them. Seems more like an emotional or psychological tactic

  27. KendrixTermina


    15 天 前

    So ms. Williams is the most confident of them all?

  28. Lawn Hair Lawn Care

    Lawn Hair Lawn Care

    15 天 前

    Never heard of the guy ranked 2

  29. Johny M.

    Johny M.

    15 天 前

    Medvedev looks like a fluffy ball😁

  30. Yash Wadekar

    Yash Wadekar

    15 天 前

    Advertisement at the start of the video makes the viewer irritated...atleast put it between or end of the video....

    • Yash Wadekar

      Yash Wadekar

      15 天 前

      Was about to watch the full video...but two ads in a row in the start of the video made me change my mind

  31. sandy bolls

    sandy bolls

    15 天 前

    Someone call me out if I’m being delusional, but is this the same “routine” as the one in kaguya-sama love is war? If you can’t remember, she would rest her hand on her cheek when she needed to focus around shirogane.

  32. rayan nasser

    rayan nasser

    15 天 前

    They need to do an experiment on what’s the impact of the second ball in the players pocket when they serve. i believe it impacts more than this proved experiment.

  33. greyztone


    15 天 前

    1:56 "Yes, THE Serena Williams." Glad you clarified. I think we all assumed he meant the other Serena Williams.

  34. Sports King

    Sports King

    15 天 前

    ........studying the aerodynamics of spodts ball for 4 decades..... *Dude?!*

  35. lisa eve

    lisa eve

    16 天 前


  36. IDFWY


    16 天 前

    I've always wondered why they inspect the ball like that 🤣

  37. Swinde


    16 天 前

    That is one of the things I like about Serena. She will play with any ball and she doesn't put a second ball in her skirt. Only two others like this. Venus, and Svetlana Kuznetsova.

  38. loaf lan

    loaf lan

    16 天 前

    I love playing tennis

  39. Nicolas Bratti

    Nicolas Bratti

    16 天 前

    I'm tennis player and the part of selecting the ball is just for breathing

  40. Isaac Lopes

    Isaac Lopes

    16 天 前

    that "yes, THE serena williams" was so unnecessary lol. Literally every other dude they talked about was a bigger deal than her.

  41. Cairosharn


    17 天 前

    For no reason at all I’ve recently been interested in Tennis and this was the answer to a question I’ve been thinking for a while😂😂

  42. Nkosinathi Kheswa

    Nkosinathi Kheswa

    17 天 前

    Urgh, Serena! ♥️

  43. Naik Ganesh

    Naik Ganesh

    17 天 前

    0:53 AB De Villiers Spotted

  44. Kevin22156


    18 天 前

    I rub one out before the match for that post-nut clairity.

  45. Nymid Artist

    Nymid Artist

    19 天 前

    Why did I click on this video?

  46. Valn3d


    19 天 前

    remember to put drop shadow in the white lowerd third text 2:37

  47. Wmr Cats

    Wmr Cats

    20 天 前

    jesus loves you

  48. chief 1 redwolf

    chief 1 redwolf

    20 天 前

    HOPE 🌹IN 🌹LOVE 🎾🕊🎾 Salvation is found in no one else, no other name under heaven given among men where by we must be saved. Saved from the punishment of sin. I’m trying to offer people Hope in absolute perfection !!! No more pain, dying, lies, decay, depression, anxiety, crying, sickness, rotten food, broken things , etc... offering the Hope of Eternity in heaven with Jesus Christ. We must be willing to turn from sin and to believe the Gospel, Mark 1:15 to receive Jesus forgiveness. He who does the will of God abides for eternity 1 John 2:17 Visual Bible movies on CNglobal. Matthew, Acts, Luke, John 💜👑✝️📖nkjv 🧎‍♂️ 🙏🙂🇺🇸 🎾🏆🎾🏆🎾

  49. HumFifa


    20 天 前

    Up the medvedev

  50. AbstractMan23


    20 天 前

    Why were no specifics given as to how much difference the fluff actually makes in terms of speed? Or is it really all just psychological…

    • Volentez Zetnelov

      Volentez Zetnelov

      20 天 前

      Probably only milliseconds.

  51. Jessica Winslet

    Jessica Winslet

    21 天 前

    no one cares about mens tenis matches ... they only want to see the women for the short skirts ... that why i watch

    • Jessica Winslet

      Jessica Winslet

      20 天 前


    • NatureTube


      20 天 前

      If you bi you'll watch either way



      21 天 前

      So your saying all man watching women tennis because of the short skirts😐

  52. likeaboss516


    21 天 前

    Wow. Didnt Michael Kosta was a tennis player. What a career transition.

  53. Kofi A

    Kofi A

    22 天 前

    ...Makes a serve?

  54. Alfonso Medina

    Alfonso Medina

    22 天 前

    Boring 😴😴😴😴😴😴😴

  55. thekerbal


    22 天 前

    The Onion was right!

  56. Deepa Singh

    Deepa Singh

    22 天 前

    Legends say that Rafa is still getting himself ready for the serve😂😂.

  57. A P

    A P

    22 天 前

    I cannot watch any Nadal match. I can only watch highlights. His service routine is beyond annoying

  58. Anurag Sarkar

    Anurag Sarkar

    23 天 前

    2:04 "Yes, THE Serena Williams" Thanks so much for clearing that up, was wondering which of the many Serena Williams had him as coach.

  59. CS1.6


    24 天 前

    I have seen pete Sampras do the same ,,,,ask just 1 ball

  60. You see what i did there

    You see what i did there

    24 天 前

    Something so insignificant yet deep inside my heart, i am curious

  61. Mike Vasko

    Mike Vasko

    25 天 前

    When you google actually Albert Costa as professional tennis player and RG winner but first link goes to Michael Costa)

  62. Abhinav Salla

    Abhinav Salla

    25 天 前

    I just vox to learn things that i will never need to use in real life!

  63. ilhamrj


    27 天 前

    No way,.... Michael Kosta's Daily Show was a pro tennis player??

  64. Abigail Dondoyano

    Abigail Dondoyano

    27 天 前

    Wait. Isnt that guy from the reporter of the daily show?

  65. Jimit Dave

    Jimit Dave

    28 天 前

    Next video about : Football selection

  66. Wyatt Whitney

    Wyatt Whitney

    28 天 前

    Shaving in swimming is similar like they mention in the video… you feel so much faster in the water

  67. tonty rutinel

    tonty rutinel

    29 天 前

    Wait wait wait is that Kosta from the daily show?!?!?!?!?!

  68. rus-al


    29 天 前

    These top-view animations though… Have you ever watched a game of tennis?

  69. Atharva


    29 天 前

    What vox was and what it has become!

  70. Leomerya12


    29 天 前

    I'm a very high level player, and the ball really doesn't matter that much, especially because they change them out every 7 games (about 15-20 minutes).

  71. Andrew


    个月 前

    Was this just a really long promo to slightly hint at Williams being better than other players?

  72. masJackal


    个月 前

    My friends and i use only 1 ball for like a month. Its becomes teddy bear

  73. Bvbs


    个月 前

    Serena Williams : ▪︎I don't have such weakness▪︎

  74. SoTaSpEaK


    个月 前

    Riveting journalism. Ay and by the way, a man is a man and a woman is a woman. 😁

  75. Mars Hamon

    Mars Hamon

    个月 前

    Shaving the ball. And “my rituals of finding that bigger, juicer, feltier ball…”

  76. Chris Klugh

    Chris Klugh

    个月 前

    Every sport has its superstitions.

  77. Jim Mirenda Jr

    Jim Mirenda Jr

    个月 前

    So did you think of asking the Dr how much slower a fuzzy ball moves? We you planning to share that with us?

  78. Ben B

    Ben B

    个月 前

    Na I just bounce the ball cause I wanna look cool. I also do it because it’s an effective intimidation technique. Specifically I intend on striking fear into my opponent by showing him or her my bouncing skills. This should help me win the point however, in the end I usually bounce the tennis ball for my own amusement 😁

  79. Kay


    个月 前

    Michael Kosta from the daily show was a pro tennis player. Mind blown 🤯

  80. lucasoscar


    个月 前

    Im not a pro but you would look for fluff if you get benefits from the rallies being slower or you would pick a more compact less fluffy ball to have a faster play. Also some players used a trick were they get sweat on the ball so it would be even slower since the humidity catches more dirt or clay and makes the ball a little heavier and less aerodynamic

  81. Alix Roman

    Alix Roman

    个月 前

    Did someone buy Vox? The content being uploaded seems to be deliberately useless. It is becoming bland like a regular tv network it’s almost as if the executives are just shutting down all decent article suggestions. Maybe hire some new talent ?

    • linkinqueens97


      个月 前

      By useless you mean apolitical? I don't think anything has changed. Theyve always had different series and stuff.

  82. Random Guy

    Random Guy

    个月 前

    Vox: Today were doing tennis Also Vox: Lets talk with NASA

  83. Sean Dunn

    Sean Dunn

    个月 前

    So in spite of the science that says a fuzzy ball creates more drag and is therefore slower, the greatest player in the world doesn't care. Proving that it doesn't matter. It's more ritual that anything practical. This is similar to cycling where it was debated as to whether or not Lauren Fignon would have won The Tour if he'd cut off his ponytail. Yeah no.

  84. Max van Houtum

    Max van Houtum

    个月 前

    Hi could you guys do a video on the climate effects of krypto currencies? I know I'm asking for a confirmation of my own beliefs here, but krypto currencies are such a huge global hype of which people don't seem to understand the price that comes with it and I think there's no better forum than Vox to explain the subject. Keep up the good work guys! :)

  85. Taxationis Theft

    Taxationis Theft

    个月 前

    Like medvedev said it won’t make you win or lose the match

  86. Lou Ayneux

    Lou Ayneux

    个月 前

    Vox has just discovered aerodynamics. Expect more smart videos with smart background music on cars, planes or bikes

  87. Arnatri Bandopadhyay

    Arnatri Bandopadhyay

    个月 前

    I was truly shocked to learn that Michael Kosta played tennis professionally......I mean who would have expected a professional tennis player to into comedy?

  88. Jack N'Jones

    Jack N'Jones

    个月 前


  89. Guilherme Pereira

    Guilherme Pereira

    个月 前

    As a person who play tennis, I aprove this video

  90. Arjun


    个月 前

    2:23 INDIAN scientists are everywhere .....literally 40 % of Nasa 's scientists are Indian

  91. Nikhil Kumar

    Nikhil Kumar

    个月 前

    It is one question that has always been on my mind. Thank You

  92. Johnny McMenamin

    Johnny McMenamin

    个月 前

    I've never looked at the fluff.

  93. Chris


    个月 前

    Made me sick watching this absolute trash

  94. Philip Haycock

    Philip Haycock

    个月 前

    Heard a pro admit that they only do it because the other players do it

  95. That Gardener

    That Gardener

    个月 前

    Interesting. I hate that guy mortagu coach he is so full of himself a bit like his student serena. Love medvedev he really summarized it so well.

  96. Julien Taming

    Julien Taming

    个月 前

    Serena is incredible.

  97. Aly pixar

    Aly pixar

    个月 前

    Great video

  98. Matt H

    Matt H

    个月 前

    I played tennis for ten years, I’m not a pro but nobody I knew did this it’s just feel

  99. Keerthana Sharma

    Keerthana Sharma

    个月 前

    Rafa, my baby🥺🥺🥺

  100. Keerthana Sharma

    Keerthana Sharma

    个月 前

    It's so nice how these tennis celebrities humbly introduce themselves. We know who you are, Mouratoglou!