Tennis-Tiafoe dumps third seed Tsitsipas in opening day shock

Tennis - Wimbledon - All England Lawn Tennis and Croquet Club, London, Britain - June 28, 2021 Frances Tiafoe of the U.S. celebrates winning his first round match against Greece's Stefanos Tsitsipas REUTERS/Toby Melville

LONDON (Reuters) -American Frances Tiafoe caused the first big upset of the Wimbledon men's singles tournament by beating third seed Stefanos Tsitsipas 6-4 6-4 6-3 on Monday.

Tsitsipas, playing his first match since his French Open final defeat by Novak Djokovic on June 13, was on the backfoot from the beginning against a 57th-ranked opponent who took the game to him.