Aljamain Sterling Says O'Malley Fight Could Be Last In 135 Lb. Division

Take a hard look at Aljamain Sterling when he fights Sean O'Malley at UFC 292 'cause it could be the last time Aljo competes in the bantamweight division ... the UFC champ tells us he wants to move up and dethrone featherweight champ Alex Volkanovski.

Whether or not it is his last scrap at 135 lbs., 34-year-old Sterling seemed to indicate he may not be around the Octagon much longer.

"I think [it could be my last at 135]. I think I go out there, dominate O'Malley the way I think I'm gonna dominate him, send that naked mole rat back to wherever he's from, the hole he crawled out of," Sterling told Babcock on the "TMZ Sports" TV show (airs weekdays on FS1).

The bantamweight king continued ... "We set our sights on Volkanovski. Go up to 145, cause some terror there. Win the belt, become champ-champ, and then from there, possibly defend the belt one or two times and maybe that's all she wrote for the MMA career."

Of course, in order to be double champ, Aljamain must defeat Suga on August 19 in Boston ... a fight that's been talked about for years.

"It's cool to be going to Dana White's backyard and bringing in a good show. We're the headliners. We get to end the night, try to end the night on a good night, on a high night, and it's an opportunity for me to really make more history, get another bag, and rob the bank."

"I'm looking forward to robbing the bank vs. Sean O'Malley and showing Mr. High Fructose Corn Syrup why there's levels to this game."

If Sterling does ultimately retire from MMA in the near future, we asked him what he do as his second act.

"Maybe I start boxing after," Aljo said, laughing.