Michael Jordan has called in the big guns to sell his insane Chicago mansion -- hiring "Real Housewives" star Mauricio Umansky ... who tells TMZ Sports he's "honored" to work for the legendary #23.
MJ has been trying to sell the pad since 2012 -- but couldn't move it for the price he wanted (originally $29 mil) .. so swapped out his real estate people and called in Mauricio and Kofi Nartey of The Agency.
"I'm so honored, such a privilege to be hired by the great Michael Jordan,"Mauricio told us.
So, what's Umansky's strategy? It starts with the new asking price ... $14,855,000 ... and when you add those numbers up ... it comes to 23! Pretty cool right?
Check out the clip ... Mauricio explains why some lucky rich guy is about to land one of the greatest homes he's ever seen.