Isner's height doesn't explain everything. Del Potro moves way better than him, and Janowicz moves even better and is much more solid in groundies. EDIT: Son of volleyball players it seems, ex volleyball player IIRC. Lacks a more "tame" temper though. Sometimes you'd forget the Polish guy is that tall. Isner can only blame himself for his movement and groundstrokes.
Last edited by Lukhas; 06-17-2013 at 06:22 AM.