Attendance: 39,262. Last year: 32,022.
Weather: Sunny. High of 93 degrees.
Women's quarterfinals: No. 5 Elena Dementieva def. No. 21 Nadia Petrova; No. 6 Serena Williams def. No. 14 Agnieszka Radwanska; No. 7 Venus Williams def. Tamarine Tanasugarn; Zheng Jie def. No. 18 Nicole Vaidisova.
Wednesday's men's quarterfinals: No. 1 Roger Federer vs. Mario Ancic; No. 12 Andy Murray vs. No. 2 Rafael Nadal; Marat Safin vs. No. 31 Feliciano Lopez; Rainer Schuettler vs. Arnaud Clement.
Stat of the day: 9-out-of-10 Break points saved by Venus Williams, including six in one game, in her 6-4, 6-3 victory over Tanasugarn.
Quote of the day: Oops, I did it again. Dementieva, on what was going through her head when she was letting a 5-1 lead in the second set slip away against Petrova before recovering to win. Dementieva lost at the French Open after being ahead by a set and 5-2 in the second.