Former U.S. Open champion suffers shock third-round exit from Australian Open . Unseeded Jeremy Chardy from France beats sixth-seed Argentine in five sets . TL;DR Serena Williams and Sloane Stephens into fourth round in women 's draw .
Former U.S. Open champion suffers shock third-round exit from Australian Open . Unseeded Jeremy Chardy from France beats sixth-seed Argentine in five sets . Roger Federer , Andy Murray safely through to fourth round with straight-set wins . Serena Williams and Sloane Stephens into fourth round in women 's draw .