Daniel Cormier defended his light-heavyweight belt in a night full of incident and high drama at UFC 210.

The champion submitted his challenger in the second round via a rear-naked choke and Johnson shocked the crowd by announcing his retirement after the fight.

He said he was sick of being punched in the face which seemed a reasonable reason to call it a day.

In the co-main event there was huge controversy as the referee intervened when he though Gegard Mousasi used two illegal knees but replays showed the decision to be incorrect and there is likely to be a rematch.