While many rumors speak of a new boxing fight for him, Francis Ngannou is challenged by an MMA champion. He's Renan Ferreira, the PFL heavyweight champion.The Brazilian, who defeated Denis Goltsov on November 24, has openly said he wants to face Ngannou."Francis, I'm here. I'm waiting for you. I'm the new PFL heavyweight champion. Let's make this fight happen," he said after his win. Ferreira has 12 wins and 3 losses in MMA.