Top seed Roger Federer tamed a swirling wind and close friend Stanislas Wawrinka during a clinical straight -sets victory to reach the quarter-finals of the French Open on Sunday.
Federer, who teamed up with Wawrinka to win the doubles gold for Switzerland at the Beijing Olympics in 2008, was at his masterful best to post a 6-3 7-6 6-2 victory and move into the last eight without dropping a set.
Wawrinka had a chance to blot the defending champion's copybook when he went a break up in the second but Federer predictably hit back and secured the set on a tiebreak.
It was all too much for Wawrinka who destroyed a racket frame in frustration and Federer rolled through the third, clinching victory in one hour 56 minutes when he smashed the ball away into an empty court.
Federer will face either Robin Sodeling, the man he beat in last year's final, or Marin Cilic next.
