Williams has mental edge over rest at Wimbledon

LONDON. Serena Williams heads to Wimbledon to defend her title with seeds of doubt and defeatism already sown in the minds of her opponents.
Serena Williams beats Agnieszka Radwanska to win Wimbledon title in 2012. Net photo
Serena Williams beats Agnieszka Radwanska to win Wimbledon title in 2012. Net photo
Quartz