Originally Posted by dominikk1985
however at his long swing arc it just doesn't look very fast. berdych is similar. they both have very quiet swings (also because they hit quite flat and thus don't need so much extra RHS like nadal for example) but the ball really jumps off their rackets.
I didn't say it was bad or even didn't look fast.
Just that I think he has room to improve it, much like his serves.
Sort of a safe statement since almost anyone can improve some