A LEGEND NO MATTER WHAT TMZSports.com
If Mike Tyson's days of getting paid to step in the ring are officially done ... fitness guru Shaun T tells TMZ Sports the boxing legend could still easily find a steady stream of revenue on an unlikely source -- OnlyFans!!
The "Insanity" workout star -- who's developed a massive OF following in recent years -- tells us after the world got a glimpse of Iron Mike's buttocks during the leadup to his fight with Jake Paul last week, he's confident people would fork over cash to see it even more.