That extra half a second Nadal needs today worries me most: Corretja

Talking about Rafael Nadal's return to tour, ex-world number two Alex Corretja said the worrisome thing about 20-time Grand Slam champion's recovery are his movements. Nadal underwent medical treatment for chronic left foot injury in September. "That extra half a second that he needs today is what worries me most," he added. Nadal hasn't played since Washington Open in August.