Women's tennis continued to be at its unpredictable best as Bartoli, Radwanska and Cibulkova succumbed to unseeded opponents. In the men's category, Almagro and Baghdatis were the casualties as other top seeds marched on.
Upset of the day: Ivo Karlovic, Croatia, and Frank Moser, Germany, defeated the top seeded pairing of Bob and Mike Bryan 6-4, 2-6, 6-2.
Wag of the Day: Actress Brooklyn Decker, wife of Andy Roddick, smiles during her husband's match against Michael Russell. (AP Photo)
Best seed in action (men's): Andy Murray overcame a fighting Somdev Devvarman to reach the second round. (AP Photo)
Best seed in action (women's): Third seeded Maria Sharapova overcame Anastasiya Yakimova of Belarus, 6-1, 6-1. (AP Photo)
Qoute of the Day: "I wouldn't say I'm pleased with the quality of tennis I showed, but I'm pleased the way I handled the match." - Vera Zvonareva, who defeated Kateryna Bondarenko to advance to the third round.
Stat of the Day: Bob and Mike Bryan lost a first-round Grand Slam doubles match for the first time since the 2001 Australian Open.
Match of the Day: John Isner (28), United States, defeated the ever-striving Marcos Baghdatis of Cyprus, 7-6 (2), 7-6 (11), 2-6, 6-4.
Biggest joy of the day: Christina McHale of the United States defeated eighth seeded Marion Bartoli of France, 7-6 (2), 6-2.
Former Champion in action: 2009 US Open winner Juan Martin Del Potro defeated Filippo Volandri of Italy, 6-3, 6-1, 6-1.