As for PFL, the MMA firm concluded its season with a championship event Friday in Saudi Arabia. Dakota Ditcheva announced herself as a surging British MMA superstar-in-the-making with a thumping knockout win over the former UFC title challenger Talia Santos.

The footage went viral when video emerged from a Manchester United fan account that seemed to show the pair get into a grappling match. Ngannou, who stands at 6’4″ just weighed in at 256lb for his MMA comeback, took down 6’3″ Onana and moved him around with ease.

Francis Ngannou humorously responds to Manchester United's Andre Onana, who jokingly requests a rematch after takedown.

Andre Onana is a brave man for wanting to spar with Francis Ngannou - one of the most terrifying heavyweights of his generation.

Iconic PFL champion Francis Ngannou was one of a number of guests of honor at Old Trafford last night as Manchester United eeked out a 3-2 win in Europe. And he was welcomed on to the pitch afterwards for a picture with Onana, who is also from Cameroon.