Novak Djokovic advances to Australian Open quarterfinals on a walkover after Jakub Mensik withdraws‎

Novak Djokovic has had a walkover into the Australian Open quarterfinals after Jakub Mensik withdrew 24 hours ahead of their scheduled fourth-round match with an abdominal injury. The tournament confirmed Mensik's withdrawal late Sunday. “After last couple of matches, I started to feel worse, and actually the problem is my abdominal muscle on the left side,” Mensik said in comments published by the tournament.