Melbourne: Roger Federer admitted he feared a shock exit from the Australian Open before overturning an early deficit and surviving a mystery injury scare to reach the third round.


Roger Federer celebrates his win over Simone Bolelli yesterday. Pic/Getty Images 

Federer lost the opening set of his second-round match to Italy's Simone Bolelli before calling the trainer to Rod Laver Arena for what initially appeared to be a blister on the little finger of his right hand.