Former World Number 1 Rafael Nadal will miss 4 weeks of the tour, due to a knee injury, Nadal was forced to retire from his recent Australia Open Quarter Final match with Andy Murray when trailing by 2 sets to love.
Nadal has been plagued with this knee injury, it forced him to miss the defense of his titles at the Queens Club and Wimbledon last year.
Last year Nadal won the Australian Open for the 1st time in his career, beating Fernando Verdasco in the Semi Final in 5 sets and then beating the World Number 1 Roger Federer in an epic 5 set match.
The Spaniard however was stunned in the 4th round of the French Open by Robin Soderling of Sweden in 4 sets.
Nadal was then beaten easily in 3 straight sets by Juan Martin Del Potro in the Semi Finals of the US Open 6-2 6-2 6-2, the Argentine went on to win his 1st Grand Slam title when he beat the World Number 1 Roger Federer in an epic 5 set final.