Williams had her first wobble while serving for the match at 5 - 3 , giving Strycova a sniff of hope .
The American looked in trouble when a change of direction left Williams sitting on the sun - baked court grimacing .
Williams had her first wobble while serving for the match at 5 - 3 , giving Strycova a sniff of hope , and the American looked in trouble when a change of direction left her sitting on the sun - baked court grimacing .