This would be big for him... But to be fair, it would be as big for Ginepri. I just love Gasquet's game, however. Rooting for him here. He's slower than I thought, though I thought he could move like Nadal, Hewitt, Coria, but that's certainly not the case.
I saw Richard against Ivan the other day in person and while Ivan is not a speedy fox, I would say Richard is deceptively fast. Or maybe it's just his great anticipation. He moved languidly, but showed up at the ball with great balance.
I wouldn't say he's the speediest guy out there, but he has great movement skills. Perhaps he just needs to work on his conditioning to go far in grand slams.
Ginepri was moving pretty well, on the other hand. Yeah, I haven't really seen much of Gasquet at all, but I knew his stature wasn't great, so I assumed his movement is top-notch, but he seems to get by on his shot-making. Perhaps you are right, he's just worn down (three looong matches), because to me it seems that if he could be super quick, he would be top-10 for sure...
His feet look kind of bulky though... He doesn't seem to be light-footed. Seems like he has a lot of lower body strength, but not particularly a great mover. Don't know, just an observation.