Swiss champion wants to extend his major winning streak against Brit

Roger Federer is bidding to maintain his Grand Slam dominance over a rejuvenated Andy Murray in their much-anticipated semifinal showdown at the Australian Open on Friday.

Federer trails the British world No 3 10-9 in their matches, yet significantly the Swiss great has claimed all three of their Grand Slam exchanges, all in finals, with two of them leaving Murray in tears.