when were yellow tennis balls first used at wimbledon
Talk:Tennis ball Historically, balls were either black or white in colour, depending on the background colour of the courts. In 1972 the ITF introduced yellow tennis balls into the rules of tennis, as research had shown these balls to be more visible to television viewers. Meanwhile Wimbledon continued to use the traditional white ball, but eventually adopted yellow balls in 1986. ref= http://www.itftennis.com/technical/equipment/balls/history.asp HUH HI hi HI hi HI hi HI hi
Marcus Álvarez
Paris Peace Accords
Alonso Álvarez de Pineda