I also find Lesnars comments ridiculous about "Wanting to be able to walk when he is 40!" when he's actually more likely to suffer injured knees etc in an American Football game than he would in WWE.
Look at guys like The Rock & Goldturd,didnt they have to give up Football because of injuries sustained while playing?
And unless I'm very much mistaken,Lesnar has already had knee surgery so his knees are very unlikely to hold up to the stresses of an NFL game!