ALEX ALL THE WAY TMZSports.com
Pro Bowl defensive end today ... UFC heavyweight champ down the road?!?
Maxx Crosby sure seems to think that's possible ... telling TMZ Sports he could see himself stepping into Dana White's Octagon at some point in the future.
Crosby, of course, is fully dedicated to his NFL career at the moment ... but he says he trains to be a beast on Sundays with daily boxing exercises -- and it's clear, it all could lead to a professional tilt later on.