Collosal. Whilst It can be risky and I suspect it will at some point cost us, i adore the way he throws his body on the line to get in blocks especially when he's nowhere near the ball but still blocks it like the one today, something Vinny used to do.
Aggression concentration organisation the guy has the lot. When players around him are having a mid-game wobble he stands firm as the foundations of the wall and rebuilds.