Roger Federer pulled out of the Gerry Weber Open grass-court tournament to rest his groin ahead of Wimbledon. Federer is a five-time champion at the Wimbledon warmup tournament and was the No. 1 seed. "I am very disappointed as it's one of my absolute favorite tournaments on the ATP Tour, but my body, especially my groin, really needs a rest," Federer said on his website Monday -- a... More...