Conor McGregor was beaten on his UFC return as Khabib Nurmagomedov delivered a career-best display – but the Russian was seemingly the instigator of a post-fight melee.

McGregor was making his comeback to mixed martial arts after a near two-year hiatus but he submitted to his rival’s rear-naked choke midway through the fourth round at UFC 229 in Las Vegas.

Watch picture highlights of the bout below: