Amelie Mauresmo has one: She tore her quadriceps at the beginning of match play today in Eastbourne and had to retire.
Lindsay Davenport has one, too. She withdrew from Eastbourne because of a knee injury.
Victoria Azarenka retired during the first round of Eastbourne because of a recurring knee injury, and Katarina Srebotnik retired today at the Ordina Open with an ankle injury.
It is always sad to see any player injured right before a major, but these are not just any players. Two are former Wimbledon champion, one is a potential big winner, and one is ever-dangerous.
Of course, there are other injuries. Akiko Morigami has already withdrawn from Wimbledon because of a knee injury, and Tatiana Golovin has missed most of the season because of cyst surgery. Marion Bartoli thought she might have to withdraw from Wimbledon because of her wrist injury, but she appears to be alright--for now.