Lucky loser David Goffin, who pushed Roger Federer in a four-set loss in the fourth round of Roland Garros, says that his childhood idol was unshakeable mentally.
"What is very frightening is his attitude," Goffin said. "When he was down, I thought he's going to show something with his face, he's going to have a shake in his lips. Nothing. Poker face. Like in every other match. He's very focused. Even when he's not playing at his best level, he continues playing and he ended up winning. Just like anywhere else. That's what I find impressive."