He didn't want her bringing any black guys to the game because he knew where she came from. Same reason Bill O'Reilly was so pissed at rap music back in the mid to late '00s.
As the good bishop himself explains:
DIDN'T CLIPPERS OWNER DONALD STERLING KNOW THE BISHOP DON JUAN WAS A BLACK MAN HERE THE BISHOP DON JUAN HIS CHICK MY FRIEND V FELLOWSHIPPING AT THE HONEYCOMB SHE DROVE HIS RED FERRARI OVER AND IM GONNA CHECK SOME OF THAT PAPER DONALD STERLING 1.8 MILLION HE GAVE HER U HEA MEEE RACISM I THINK THE CHICK BOUGHT HIM TO THE HONEYCOMB ONCE UNDERSTAND MEEE BOSS GAME Y'ALL WOULDN'T KNOW ANYTHING ABOUT THAT !
Those iPhone only cost $200 because you're signing up for two years worth of data. Let some homeless guy -- who could give a rat's ass about his credit -- sign the contract, give him $8 and a bottle of Thunderbird for his trouble, and then sell it on the Internets for like $700 #ingenuity