Dana White says the fight deal he made with Floyd Mayweather was entirely constructed and sealed at the Clippers game last month ...and says they're targeting a Sept. 2020 fight date.
"He and I did a deal right there in our seats on the court," the UFC honcho told Rich Eisen ... "We shook hands and we have a deal."
White didn't reveal any details about Floyd's potential opponent -- but later told Jim Rome he's hoping to sit down with Floyd's business partner, Al Haymon, in March to get a fight booked for Sept.