SuggestedLeadIn: Reaction from Mardy Fish, Novak Djokovic, Eugenie Bouchard and Belinda Bencic on day one of the US Open in New York on Monday (31st August).

Script: SOUNDBITE (English) Novak Djokovic, men's number one seed, defeated Joao Souza 6-1, 6-1, 6-1:

"Only positive. I lost three games the entire match against a player I never played against before. It can always be tricky because you're approaching the match without really knowing how he's going to react. First time playing on Arthur Ashe Stadium. The experience of playing in that stadium before many times has helped me to kind of step it up and execute my game plan and be aggressive. I think I've done great from the first to last point. Everything worked well."

SOUNDBITE (English) Novak Djokovic, men's number one seed, defeated Joao Souza 6-1, 6-1, 6-1:

"Well, you're making, first of all, yourself feel good on the court. You're trying to approach every match in a way that you want to approach. Of course, it's easier said than done to really play well. Especially in the first matches of a new tournament. But with a dominant win like the one today, it adds to your confidence, your self-belief. But it's also making a statement for everybody that is out there watching. We are all watching each other's matches. We are all seeing how each other progresses. It's important you're out on the court with the right intensity and you're sending a good message, and I've done so. I couldn't ask for a better opening of this year's US Open. Hopefully I can continue in that rhythm."

SOUNDBITE (English) Eugenie Bouchard, defeated Alison Riske 6-4, 6-3:

"I definitely felt different than last week. Just more inspired, more confident, more motivated. You know, just kind of trying to regain the confidence and the belief in myself. I've been working on that. Obviously being at the US Open helps. The crowd, you know, just this whole atmosphere, it's what I thrive on. It's what I do well on. So that definitely helped me out today, too."