Jake Paul is sending a direct response to his haters with his next opponent -- he just announced he's slated to fight pro boxer Andre August next month.
The Problem Child is going up against a 10-1 cruiserweight fighter with five knockouts under his belt ... and he's referring to the matchup as a serious challenge as he continues his quest to become a legitimate world champion.
"Ask and I shall deliver," Jake said Wednesday. "August has more KO’s then me, more wins then me, more experience then me, but I like to gamble.