Federer has doubts ahead of Murray tie

Roger Federer thinks both he and Andy Murray will approach their Australian Open quarter-final clash with "doubts".

Federer, 32, has fallen in the world rankings to sixth following a difficult 2013 where he won just one tournament, while Murray has recently returned to the Tour having been sidelined for four months with a back injury.

The four-time champion, who beat Jo-Wilfried Tsonga in straight sets to secure his spot in the last eight, says he wants to play the "best players" and is relishing the challenge against Murray.

Top videos

Top Stories