Stanislas Wawrinka defeated Roger Federer to advance into the semi-final of the French Open on Tuesday.
The eighth seed defeated his countryman 6-4 6-3 7-6(4)- his first win in a Grand Slam over the 17-time champion.
The 30-year-old Wawrinka goes on to face home favourite Jo-Wilfried Tsonga, who survived a five-set marathon to beat Kei Nishikori 6-1 6-4 4-6 3-6 6-3.
Wawrinka takes a 3-3 head-to-head record into the clash and has won their past two clashes. They have met at Roland Garros twice before, with both matches going five sets; Wawrinka prevailed in 2011 and Tsonga in 2012.