Frances Tiafoe has apologized for unleashing a cursed rant at an umpire following his third-round loss to Roman Safiullin at ...

LONDON—Wimbledon is replacing line judges with electronic line-calling, the latest step into the modern age by the oldest Grand Slam tennis tournament. The All England Club announced Wednesday that ...

After confrontational scenes in Shanghai, does tennis have a problem with officiating, or do players just need to get a grip?

US Open semi-finalist Frances Tiafoe aimed a torrent of expletives at the chair umpire after losing a match at the Shanghai ...