Askren -- a decorated MMA fighter -- threw some shots that landed in the opening moments of the fight. But things changed quickly.
24-year-old Paul made it clear he was headhunting -- throwing big shots and connecting with a DESTRUCTIVE right hand that sent the UFC fighter crashing to the floor with 1:18 left in the opening round.
Snoop was so pumped -- he was shouting, "FINISH HIM! FINISH HIM!"
36-year-old Askren got up and wanted to continue -- but the ref waved it off, saying Askren was stumbling ... and ultimately ruling Ben was just too discombobulated to continue.
Jake WAS EMOTIONAL after the win -- crying in the ring and falling to his knees in disbelief, At one point, he got back up and started doing push ups to show he could keep going.
.@jakepaul has stopped Ben Askren in the FIRST ROUND!