Grand Slam Tennis: Done and dusted with the clay, it's time to move on to the grass!

Welcome back, Juan Martin del Potro!

The former US Open champion was the other top player who had to pull out of the French Open after being struck down with respiratory problems that needed treatment in Argentina. Del Potro has struggled with niggling injuries and health concerns over the past few years following his wrist surgery and his ability to play seven best-of-five sets over two weeks is always in doubt. Potro has never won a title on grass and his height makes it difficult for him to bend low on the grass. And his draw is not exactly a cakewalk. A first round bye could be followed up with a second-round against former Wimbledon semi-finalist Xavier Malisse, a third round with the Finnish veteran Jarkko Nieminen and a quarter-final against 2010 champion Sam Querrey, four-time champion Lleyton Hewitt or rising Bulgarian Grigor Dimitrov.