Jay Glazer gets hit a lot at his MMA gym -- whether it's UFC stars or big name actors, dude gets beat up all the freakin' time ... but who hits the HARDEST??
Star-Lord!!!!
That's right ... Chris Pratt's got the power that'll knock anybody out, so says the Unbreakable Gym owner ... who tells TMZ Sports Pratt straight-up hits harder than the Natural.
"It sucks getting hit by Chris Pratt more than it sucks getting hit by Randy Couture."
UMMM ... HAVE YOU SEEN RANDY COUTURE FIGHT?