Great interview from Fish regarding the heavy Wimbledon balls and the difficulty in penetrating the court. This doesn't fare well for Federer should he have to play Nadal who will assume his typical ball machine routine. They should implement the French Open balls here. Q. What makes grass your best surface? Why does your game fit it well? MARDY FISH: Well, I feel comfortable coming to the net. I feel comfortable coming forward. They're doing a really good job of making it tough to do that, as well. You know, the balls are extremely heavy. When the sun's not out, it's very hard to really get the ball through the court, you know, minus the serve. You feel like it is still grass, obviously, so the serve still takes, the slice still takes, still moves pretty good. But it's as the balls are as heavy as any ball out there. I feel a lot more comfortable serving, if you take away the grass, a lot more comfortable serving at the French Open with those balls. Q. Can you explain what 'heavy' means to you? MARDY FISH: Yeah, balls get real big real quick. You know, you can't really feel your shots as good as you can as, you know, like the US Open, with those balls there. And they just get tough to hit the ball through the court. It's tough to hit winners from the baseline. Like I said, the serve still moves and still takes and you can serve well and hold serve because it's grass. It's still grass. But, uhm, you know, the grass is so good and the bounces are so pure that, you know, the balls, they're really, really heavy. Q. Is that frustrating for a guy who likes grass? MARDY FISH: Yeah, sure, it's frustrating. I serve and volleyed on I think almost every first serve today. But I served well and had a lot of free points on my serve, so I didn't necessarily get into a ton of rallies, have to get into a ton of rallies on my serve games. It's tough to hit the ball through the court with the forehand. You know, you got to try to generate a lot of pace, and it's hard.