Rafael Nadal tells Spanish TV station IB3 that his left knee is still not 100 percent healthy. Nadal, who took seven months off to rehabilitate his knee before returning in February and winning three tournaments, will try to defend his Monte Carlo title next week.

"After a tough tour and training, the knee has left me more sore than I would have liked,” Nadal said. "But in the last few days I am much better, really.”