Colby Covington says he'll have some pretty powerful and famous guests in the building when he rematches Kamaru Usman at UFC 268 ... telling TMZ Sports he's expecting Donald Trump's kids, Don Jr., Eric and Lara Trump Octagon-side.
We talked to the 33-year-old, #1 ranked UFC welterweight ... and asked him if former President Trump or his fam would be at Madison Square Garden on November 6.
"Yes, there will be some members of the Trump family there.