Nadal still cagey about knee ahead of US Open

Washington: As French Open champion Rafael Nadal prepares for the US Open, the tennis star has revealed that he still has some pain in his knee although his results have been amazing since his return.

According to ABC News, none of the players setting foot on the blue hard courts of Flushing Meadows possess as much momentum or form as Nadal but the biggest curiosity is to see how his knees will hold up. The Spaniard has had recurring problems with his knee over the years, particularly the left one, which kept him out of action from late June 2012 until February 2013. Nadal missed the London Olympics, last year`s US Open and this year`s Australian Open. ANI