It's been over two years since Bad Bunny stepped foot in a WWE ring ... but even the guy he whooped on in a match can't wait for his return -- with Damien Priest telling TMZ Sports he's got an open invite to come back anytime!!
We caught up with Priest out in NYC ... where we asked him when he hoped to see the singer put down the mic and lace up the wrestling boots again.
"Whenever he's ready," Priest said.