Fils on his progress: "It's a matter of concentration"

Arthur Fils will play his first Masters 1000 quarterfinal at Indian Wells. Speaking at the post-match press conference, he discussed the areas where he has improved.
"I've had good discussions with my team. Maybe I'm more mature now, now I know I have to fight until the last point.
Maybe that's why I'm succeeding now, it's a matter of concentration. A year ago, I thought I would lose this match, but the more you play, the more confidence you gain.
Even after a defeat, you know what to do next time to win. Experience is helping me a lot right now.
For me, it's a matter of concentration. I get broken and then I lose focus, then I lose more games and the concentration is completely gone.
Even if you're broken, even if you lose 4 games to 0, you have to stay focused and try to win games to get back into the match.
You can't take a 6-0 and tell yourself that I'll try to win the second set. It doesn't work like that."
Fils will face Daniil Medvedev in the next round.