Federer progresses past Robredo

Roger Federer survived a mid-match wobble today to ultimately breeze into the semi-finals of the French Open at the expense of Tommy Robredo.

The world number one claimed a 7-5 1-6 6-1 6-2 quarter-final victory on Philippe Chatrier court to set up a last-four meeting with either Nikolay Davydenko or Guillermo Canas, but the Swiss did not have it all his own way.