It seems a simple question - the tennis balls are obviously yellow. But some people say they are obviously green. And then there are the people who say they are obviously both. So what colour are ...

In the mid-1960s, colour TV was becoming increasingly popular. The traditional white tennis ball had been used for decades until Attenborough, a young television executive at the time, sent four ...

what colour are tennis balls? Tennis ace Roger Federer has recently served up his opinion, but we've decided at Newsround HQ that the best way to settle this, is to ask you.

A tennis ball is known and iconic for two features: the yellow colour and the white stripe. Mathilde Wittock eliminated both by hand cutting them at the white line and dying them in beautiful colors.

In tournaments, all balls have to be white or yellow in colour. This year, Slazenger is supplying 52,200 tennis balls to Wimbledon. About 20,000 of these are used for qualifying and practice. Every ...