"Fight me one more time and prove you’re actually the champ champ. I’ll donate $100,000 to a charity in San Diego if you accept," Jones wrote to Cormier on Twitter.
Of course, the two have fought twice -- with Jones winning both fights ... only to have the 2nd victory overturned in the wake of a positive PED test.
Jones is finally cleared to return to the UFC after serving his suspension -- he'll fight Alexander Gustafsson for the light heavyweight title at UFC 232 on Dec. 29th.
But Jones is already thinking past Gustafsson, trying to bail Cormier.