D.U.S.T. Commander Dale Brown says several MMA fighters have hit him up since cornering Joaquin Buckley to a win last weekend -- but unfortunately for those other fighters, the deadly self-defense expert tells TMZ Sports he's only rockin' with JB!!
We broke the news last week ... Buckley (14-4, 10 KOs) hit up Brown, a viral sensation, to be one of his cornermen for his matchup against Abdul Razak Alhassan at UFC Fight Night in Vegas.
Buckley won by decision ... and Commander Brown says Buckley utilized some of his moves during the tightly contested fight.
"I will say he did use some techniques," Brown says, "that are associated with my training."
And, ever since then, the Detroit Urban Surviving Training star says other fighters have been blowin' up his phone -- trying to get their own Buckley-type treatment.
"We've had several just the past couple of days reaching out, emailing, texting, trying to reach out and see if they can come by the facility and see what we can do to coordinate and collaborate."
But, sorry fightin' folks ... Brown says he's only gonna work with Buckley.
"We're #teamBuckley so that's not gonna happen."
However, Dale says he's down to with celebs like Odell Beckham ... who paid homage to Commander Brown after scoring a touchdown this season for the Rams.
In fact, Brown says he met Rick Ross after the Buckley-Alhassan fight -- telling us he showed the Miami rapper a nose-press technique.
"Training entertainers, training their staff, bodyguards -- anybody out there looking for advanced training."
It worked for Buckley ... and Dale says they still have more to work on, which has gotta be scary for the rest of the division.