Stan Wawrinka admits he will have his work cut out if he is to defeat Roger Federer in the semi-finals of the Australian Open.
Wawrinka's 7-6 (7/2), 6-4, 6-3 victory over Jo Wilfried-Tsonga in Tuesday's quarter-final has set up an all-Swiss semi against Federer, who stormed past Mischa Zverev 6-1, 7-5, 6-2.
The world number four is now higher up the rankings than his compatriot and is confident he can win if he plays his best tennis when they pair meet.
— Stanislas Wawrinka (@stanwawrinka) January 24, 2017
"Yeah, for sure now I'm more confident with myself. When I step on the court, doesn't matter who I play, I know what I have to do if I want to win," Wawrinka said.
"For sure, against Roger, it's always special because he's so good. He's the best player of all time. He has an answer for everything.
"But I have managed to beat him in a Grand Slam, so we'll see. Most important is that I step on the court and I play my best tennis."