By Harry Davies Francis Ngannou will fight Renan Ferreira in his MMA return after the Brazilian knocked out Ryan Bader in just 21-seconds. Former UFC heavyweight champion Ngannou fights for a professional boxer for the second time in less than two weeks, but the opponent for his MMA return is now confirmed. Ferreira and Bader were fighting in the main event of PFL vs Bellator’s Championships event in Saudi Arabia on Saturday for the chance to serve as Ngannou’s next opponent in the cage. Ferreira hurt Bader with the first jab he threw and the 6’8 Brazilian powerhouse followed it up with a righ…