Intro:

Reaction from Serena Williams after beating Flavia Pennetta at the US Open quarter-finals on Wednesday, 3 September.

Script:

SOUNDBITE (English): Serena Williams, Defeated Flavia Pennetta 6-3, 6-2:

"I think she played really well. I think every time I play her she gets better. This is definitely the best she's played me. I really had to step up my game. You know, I really had to step up my game. That's why I was down Love-3. She came out really strong and really hard. It was a very, very good game for her."

SOUNDBITE (English): Serena Williams, Defeated Flavia Pennetta 6-3, 6-2:

"I'm okay, you know. I'm okay. Obviously I want to do better. Hopefully I can. Hopefully I can play two more matches. Hopefully I can win two more matches."

SOUNDBITE (English): Serena Williams, Defeated Flavia Pennetta 6-3, 6-2, on her next opponent Ekaterina Makarova:

"Well, Makarova moves well. She doesn't care who she plays, she gives 100%. Those types of players are often difficult to play because it makes them better. Like I say, she moves well. She has that serve that can hit -- that can go out wide or you never know where it's going to go. She's has a great backhand and she's improved her forehand. It's going to be interesting for me to do the best that I can, because, you know, she has a lot of momentum going into this match as well."