Francis Ngannou returned to MMA in violent fashion at PFL: Battle of the Giants on Saturday – and social media had plenty to say about it. At Kingdom Arena in Riyadh, Saudi Arabia, Ngannou took size out of the equation. He took down Renan Ferreira and blasted him with ground-and-pound punches for the first-round stoppage.

Stars such as Cristiano Ronaldo and Ray Lewis were cageside at the Mayadeen facility, with the soccer star arriving to take in some of the undercard early. The event also featured two more title fights as PFL and Bellator pulled out all the stops for their big Super Fights pay-per-view.

Francis Ngannou's fight doesn't even make it out of the first round as he defeats Renan Ferreira with ground-and-pound in Saudi Arabia.

Get Francis Ngannou vs. Renan Ferreira live updates for the PFL Battle of the Giants: Ngannou vs. Ferreira pay-per-view card Saturday at the Kingdom Arena in Riyadh, Saudi Arabia.

Francis Ngannou is back where he belongs. The former UFC heavyweight champion finally returns to MMA after almost over two and a half years away from the sport. Ngannou takes on PFL champion Renan Ferreira in the main event of PFL: Battle of the Giants this Saturday in Saudi Arabia,

Francis Ngannou scored one takedown and the delivered a vicious ground and pound knockout to finish the fight in the first round to cap off PFL: Battle of the Giants