U.S. Open semifinalist Frances Tiafoe cursed repeatedly at a chair umpire after losing a match at the Shanghai Masters on Tuesday. Tiafoe sent about 10 expletives in the direction of official Jimmy Pinoargote during a minute-long tirade after exiting 5-7, 7-5, 7-6 (5) against 61st-ranked Roman Safiullin in the third round. The tournament can take away prize money, and the case could also be sent to the ATP Member Fines Committee for further investigation.