If Alves couldn't do it, no way are we seeing him get 'Serra'd' again. That loss was good for GSP.
I think he'll sub Hardy within 3 rounds.
Alves is nowherer near as crisp with his hands as Hardy. And it's not a case of a "luck" flash KO, it's a case of finding the button with a left hook like he did with Swick
GSP should be able to take him down at will though.