UFC lightweight champion Daniel Cormier shocked the world when he earned the UFC heavyweight title back at UFC 216, becoming only the second reigning multi-division champion in UFC history behind Conor McGregor. Now it would appear that D.C.'s hopeful opponent may have begun training camp. Daniel Cormier knocked out Stipe Miocic in the first round for the heavyweight belt back at UFC 216. In his post-fight interview, Cormier called out former UFC heavyweight champion Brock Lesnar. Brock Lesnar has since re-entered the USADA testing pool to finish out the final six months of his suspension for a failed drug test from UFC 200. Now Middle Easy has come forward to report that Brock Lesnar is rumored to already by preparing for the yet unofficial match up. Check out the original report down below. "Rumor is that the Brock Lesnar versus Daniel Cormier have not signed a contract for their title fight yet. Despite not having a contract in place, Lesnar is rumored to be already training for the fight." For more MMA news click here.