Mosley was fantastic boxer at 135-147, and we all know he can hurt Floyd badly. But one thing Floyd has over Mosley is ring IQ. And that gap is big. Mosley lacked ring IQ and that's why he lost the rematches to Forrest and Wright. He did slightly better than in the 1st fights but both Forrest and Wright beat him twice as they had higher ring IQ. So I won't be surprised if Floyd outsmarts that 135 lbs version of Shane and wins by narrow decision. But SSM definitely has the chance.