American Frances Tiafoe pulled off the first major upset at Wimbledon 2021 on Monday as he beat world No. 4 Stefanos Tsitsipas 6-4, 6-4, 6-3 to advance to the second round. Tsitsipas was favored in the match, having come in second to Novak Djokovic in the French Open final earlier this month. "Definitely one of my best [matches]," Tiafoe said in his on-court interview after the win. "From start to finish, it was pretty clean," Tiafoe said. "If you want to play against the [best] players in the world, this is what you train for." Tiafoe, 23, had never beaten an ATP top-5 player, and his victory makes him the youngest American man to defeat a top-5 player at a major since 21-year-old Robby Ginepri defeated world No. 5 Juan Carlos Ferrero in the third round of Wimbledon in 2004. The 57th-ranked Tiafoe is also the first American man to knock off a top-three seed at a major in straight sets since Andy Roddick bested Ferrero in...