aching knees

Defending champion Rafael Nadal will face a tough draw at Wimbledon if his aching knees allow him to play, with a likely second-round matchup against former No. 1 Lleyton Hewitt and Andy Murray possibly waiting in the semifinals.

Five-time champion Roger Federer was placed in the same half of the draw as Novak Djokovic on Friday, and could face the Serb in the semifinals as he bids for a record...