On his win over Roger Federer at the US Open, Grigor Dimitrov said: " I think one of the best qualities I've always admired in him is moving on.
Doesn't matter what kind of point he's playing, winning, losing, he just moves on. That's a hell of a quality to have. He's building that up for the past decade. I think that's also from where his mental strength comes in.
Of course, he's a great player, plays amazing, does amazing shots, serve, everything. There's not enough words to describe him clearly."