So, what is the most important part of the body for an athlete?
The torso, for core strength?
The hands, so vital in virtually every sport except soccer?
The legs, critical for mobility, balance and speed?
Well, no, the answer is pretty obvious: the brain.
Sure, without generous helpings of strength, hand-to-eye coordination, quickness, agility, balance or some combination of a majority of those traits, an athlete will not excel.