[donofriose]

Doesn't Tom Brady wear one after his knee surgery? He hasn't had any problems since but he obviously doesn't run like RG3. Luck wears one or at least wore one at Stanford and he ran really well and hes never had knee problems. If he can run well with a solid knee brace I see no reason why he wouldn't wear one. Majority of linemen wear it and it seems to significantly decrease the chance of a serious knee injury.