Those used initially were black or white, depending on the background color of the courts, according to the International Tennis Federation (ITF). The ITF then changed the color of the balls in 1972.

But, according to the book 2,024 QI Facts To Stop You In Your Tracks, at some point, David Attenborough noticed that the ...

After the tournament, Attenborough suggested switching to a fluorescent ball to improve visibility for viewers. The International Tennis Federation (ITF) conducted research and confirmed that ...

David Attenborough's colorful impact on Wimbledon and tennis: yellow balls ... Tennis balls were historically either black or white. Stream NBC 5 for free, 24/7, wherever you are.