Former champions Venus and Serena Williams pulled out of the women's doubles at Wimbledon on Wednesday.
"I just withdrew from the doubles," an injured Serena said after being beaten 6-4, 3-6, 6-3 by Justine Henin in the quarter-finals.
"I've sprained my thumb and can't really hit backhands."
The duo had been scheduled to play Spanish eighth seeds Anabel Medina Garrigues and Virginia Ruano Pascual in the second round.
