"I want to put Duvernay-Tardif M.D. on my jersey," he said in February, per Aaron Rose for the Kansas City Star. "I've already started a conversation with the league office, and they say that anything is possible."
Chad Johnson, formerly Chad Ochocinco, had to legally change his name to put "Ochocinco" on the back of his jersey, so the NFL's ruling shouldn't come as much of a surprise. But it's still a wet-blanket move.