I found an answer from www.quora.com

64 tennis players play a singles knockout tournament. A new ball is ...

64 tennis players play a singles knockout tournament. A new ball is used for each match. How many balls will have been used at the end of the tournament?

For more information, see 64 tennis players play a singles knockout tournament. A new ball is ...

I found an answer from www.bbc.com

Cricket World Cup semi-final: Australia beat India - Live - BBC Sport

Mar 26, 2015 ... New Zealand have been playing some great cricket, Brendon ... we would get this far in the tournament, but in the knockout stages you have to ..... Johnson will finish his spell, and India can only manage two singles off the first three balls. ..... Australia, that's why and how technology should be used in sport.

For more information, see Cricket World Cup semi-final: Australia beat India - Live - BBC Sport

I found an answer from sports.stackexchange.com

https://sports.stackexchange.com/questions/1/how-is-war-defined-as ...

... /138/why-do-the-balls-used-in-rugby-and-american-football-have-a-similar- shape ... /questions/184/in-cricket-how-is-it-decided-from-which-end-to-start-the- match ..... .com/questions/540/how-do-tennis-players-get-into-tournaments 2018- 04-27 .... /questions/719/can-we-use-a-leg-to-play-the-ball-in-volleyball 2016-04- 26 ...

For more information, see https://sports.stackexchange.com/questions/1/how-is-war-defined-as ...

I found an answer from en.wikipedia.org

The Championships, Wimbledon - Wikipedia

The Championships, Wimbledon, commonly known simply as Wimbledon, is the oldest tennis tournament in the world, and is regarded by many as the most prestigious. It has been held at the All England Club in Wimbledon, London, since 1877 .... The first match to be played in its entirety under the new roof took place ...

For more information, see The Championships, Wimbledon - Wikipedia