Stan Wawrinka says his transformation into a big-match player shows that it is possible to develop mental toughness.
"I think I'm the example that it can be done, because I wasn't that good younger,” the world No. 3 told press at Indian Wells following his quarterfinal victory against Dominic Thiem in three sets.
“When I was younger, before starting to win those big matches, I was losing a lot of important matches, 7-6 in the third or [a] big-five set match against [a] top player because I was nervous."
The 31-year-old did not capture a Grand Slam title until he was 28, but has won all three Grand Slam finals he has played. Before the final of the 2016 US Open, Wawrinka fought a bout of nervous tension and was in tears with his coach, Magnus Norman, in the locker room. But on court, he said he concentrated on not showing any fragility and playing his game, repeatedly making his now famous finger-pointing gesture for mental toughness.