The 2010 Australian Open was a tennis tournament that took place in Melbourne Park in Melbourne, Australia, from January 18 to January 31. It was the 98th edition of the Australian Open, and the first Grand Slam event of the year.In the singles competition, Rafael Nadal and Serena Williams were the defending champions. Williams was able to retain her title in a win over Justine Henin 6 4, 3 6, 6 2 in the finals while Nadal retired in his quarterfinals match against Andy Murray owing to a knee injury. Roger Federer was the eventual champion, defeating finalist Andy Murray in straight sets 6 3, 6 4, 7 6(13-11).