B.J Penn is going to run through Sanchez, seriously. It'll be an entertaining fight, but B.J has better striking, better BJJ, great cardio (now), one of the hardest chins in MMA, knockout power and the ability to stuff Sanchez's takedowns if he wishes to try for one.
I honestly cannot see Sanchez winning this one anywhere.
“Anna, my strong, terrifying Anna.” -Cas
"You lack the requisite spine and testicular fortitude to study under me" -Elodin