Australian Open champion Novak Djokovic helped Serbia to a 2-0 lead against Belgium in the first round of tennis’s Davis Cup. The defending-champion Czech Republic and Switzerland are tied 1-1 after the opening day, while the U.S. has a 2-0 lead against Brazil.
Defending champion Victoria Azarenka was pushed to three sets by an injured opponent before reaching the fourth round of the Australian Open along with Serena Williams, Roger Federer and Andy Murray. No. 6 Juan Martin Del Potro became the highest seed to be eliminated.
Serena Williams overcame another mishap to join top-seeded Victoria Azarenka in the third round of the Australian Open on the hottest day so far at the Grand Slam tennis tournament. Roger Federer and Andy Murray also won in straight sets.