The Angry Bagel Boss Guy is prepping to fight other viral stars ... by enlisting freakin' UFC SUPERSTARS for his training!!
Chris Morgan -- the dude who infamously lost his mind in a Bagel Boss shop in NY a few weeks ago -- teamed up with big-time fighters Chris Weidman and Al Iaquinta on Tuesday ... learning the ropes from some of the best in the business.
The video is really unbelievable -- Al tapes up Morgan's hands, gets in the Octagon and starts sparring with the guy!