 At Wimbledon, American Taylor Fritz, the men's No. 13 seed, defeated German Alexander Sferov, the No. 4 seed, in five sets Monday, winning the last three after losing the first two. The win puts Fritz into the quarterfinals or round of eight. Also Monday, the No. 2 seed, Serbia's Novak Djokovic, beat Holger Ruhn of Denmark in straight sets. And in women's singles, the No. 11 seed, American Danielle Collins, was upset in straight sets by the No. 31 seed,