Novak Djokovic defeats Jeremy Bates in straight sets . Australia 's Bernard Hopkins puts out ninth seed Richard Gasquet . David Ferrer survives five - set marathon to make last eight . Serena Williams on course in her title defense .
Novak Djokovic beats Jeremy Chardy in straight sets . Australia 's Bernard Tomic puts out ninth seed Richard Gasquet . David Ferrer survives five-set marathon to make last 16 . Serena Williams on course in her title defense .