With back-to-back, straight-set victories, Andy Murray and Novak Djokovic moved closer to a semifinal showdown that would be a rematch of the final last year, when Murray beat Djokovic to become the first British man since 1936 to win Wimbledon.
Kristina Mladenovic and Daniel Nestor, who won the Wimbledon mixed doubles title last year, fended off all five break points they faced and broke the Mirza-Tecau combination four times in the 58-minute match.
US Open: Venus and Serena Williams were at the top of their games on Day 1 of the US Open. Venus Williams, now ranked 60th, beat 12th-seeded Kirsten Flipkens 6-1, 6-2 Monday. Serena Williams crushed 2010 French Open champion Francesca Schiavone.