I'm not necessarily predicting it, but Ross is good enough with the hands to stop Diego, you don't need to hit with ridiculous force if you're very accurate.
But. Is Ross Pearson more accurate than Martin Kampmann, Jake Ellenberger, Gilbert Melendez, Myles Jury, etc?
Pearson looks like an animal fighting George Sotiropulous and Ryan Couture. Diego fought bigger name competition at a heavier weight class.
Is there a difference between a power punch at 145 - 155 where Pearson fought. And a power punch at 170 where Diego fought?
Diego never had a problem wrestling or grappling at 170 that I remember. He never was controlled or ragdolled. Diego should have the wrestling & grappling advantage over Pearson if things go that road.
Diego should be the favorite in this fight, imo.
I think the only time in recent history Diego was finished was against BJ Penn.
Diego probably wasn't living right or training right at that point in time. It wouldn't be accurate to say that's we can expect of a motivated, in shape, Diego.