Upsets reign at Wimbledon
First it was Rafael Nadal. Then Maria Sharapova. And late Wednesday, Roger Federer became the latest upset victim at Wimbledon, falling to 116th-ranked Sergiy Stakhovsky in the second round. And those aren't the only big names to leave. Second-seeded woman Victoria Azarenka dropped out due to injury, as did men's No. 6 Jo-Wilfried Tsonga and No. 18 John Isner. Still, top contenders Serena Williams, Novak Djokovic and Andy Murray remain. For now. Who knows what's next in this tournament?