Carolina Panthers tight end Greg Olsen says Cam Newton has had “great energy” during offseason workouts.

Greg Olsen raved about Newton's energy to The Athletic's Joseph Person on June 17.

It's just nice to see him back out there running around. I think all offseason he's had great energy. I think he feels good. I think his energy levels have been high, as they always are.

You know when he feels good and when he doesn't. It's very clear. He wears his emotions on his sleeve.

Newton, the 2015 NFL MVP, underwent arthroscopic shoulder surgery on his right shoulder five months ago. “During the process, doctors removed scar tissue that remained from 2017 offseason surgery on a partially-torn rotator cuff,” per ESPN's David Newton.

Newton told ESPN last month he was “feeling great” during his shoulder surgery rehab.

I'm feeling great right now. I feel like I do have full strength right now. But me telling the doctor, that is different than, you know, whatever the clearance process may be.

Newton has gone all out to get himself back in game shape. He began a vegan diet in May so he can maintain a weight of roughly 237 pounds, the lowest of his NFL career. He also hired a personal trainer. Newton also admitted to ESPN the ordeal has strengthened him “physically and mentally.”

A revitalized Cam Newton spells bad news for the rest of the NFC South. Plus, the Panthers and Greg Olsen now have defensive tackle Gerald McCoy. If all goes well, Carolina should end its postseason drought in 2019.