Alberto Del Rio says he's got zero interest in a WWE comeback ... but tells TMZ Sports his fiancee Paige could be "days away" from stepping back inside the ring!!
"It’s gonna happen pretty soon," Del Rio said. "Probably days away from going back to WWE."
Alberto tells us Paige has been at WWE's Orlando training facility for weeks -- hittin' the mats to prep for her return after a serious neck injury sidelined her last summer.
As for his own career -- ADR's back doin' work for MMA organization Combate Americas .