Frances Tiafoe apologizes after going off on F-bomb tirade against umpire
Frances Tiafoe apologized on Tuesday, hours after he went off on an F-bomb tirade on a chair umpire following a loss to Roman Safiullin at the Rolex Shanghai Masters in China. Tiafoe lost to Safiullin in three sets 5-7, 7-5, 7-6(5) in their …