Yes, of course we know he would get trucked and injured trying that in the NFL. Remember he did most of his damage against the SEC, which is loaded with NFL players, not the Pac10.
I saw him get stood up by Kelvin Shepherd, the entire Bama front seven, and Chris White from Miss State. He walked all over arky, uga and pretty much everyone else.
I am reasonably sure that you will see a 50+yard highlight run for TD from him this year.