Juan Martin del Potro hurts his knee and ankle going for a drop shot in his straight sets win over Grega Zemlja and says he needs to have his injuries checked out. The eighth-seeded Del Potro has reached the fourth round of Wimbledon, where he will face Andreas Seppi.
“It was really painful. I was a little scared at that moment,” del Potro said. "I finish the match very quick. Now I start to feel something in my knee and my ankle, as well. I will check with the doctor very soon.”