Venus Williams’s strong start to the tennis season ended with a loss to No. 22 seed Ekaterina Makarova of Russia in the opening round of the Australian Open. Petra Kvitova, the 2011 Wimbledon champion, was upset by Luksika Kumkhum of Thailand.
Venus Williams’s quest for a third U.S. Open title ended with a withdrawal on a day fellow Americans Christina McHale and Irina Falconi had upset wins and Andy Roddick fought through his tournament opener.
French Open champion Li Na became the highest seed to exit Wimbledon in a three-set loss to Sabine Lisicki, while Serena Williams recovered from a set down to reach round three and Roger Federer advanced in straight sets.
Top-seeded Novak Djokovic fought back from a set and 5-2 down to beat Stanislas Wawrinka over five sets in five hours at the Australian Open and advance to his 15th straight tennis Grand Slam quarterfinal.