AyJay Hintz to Russel Rivero: I'll KO You Again!

Power Slap KO artist AyJay Hintz says he's all the way down to run it back with Russel Rivero -- explaining, "It would be funny to knock him out again!"

Hintz put Rivero to the mat with a monster shot in the 1st round of their light heavyweight clash at the UFC Apex in Las Vegas -- establishing himself as the top guy in the division.

"When I knocked Russel out it showed the [rest of strikers in the Power Slap house] I'm not here too play games," Hintz told PowerSlap.com ... "I want the belt."

Since Hintz won the coin toss and elected to strike first, Rivero never got the chance to return fire during their match ... but AyJay tells us it wouldn't have mattered. He's supremely confident he can take Russel's best shot.

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