There've been chaotic scenes at the end of Conor Mc Gregor's unsuccessful return to the UFC in Las Vegas.
He lost to Khabib Nurmagomedov after tapping out to a submission move in the fourth round.
His challenge for the lightweight title then descended into chaos, as Nurmagomedov leapt out of the Octagon and into McGregor's corner, starting a brawl .
McGregor was then attacked in the ring by members of his opponent's team.
UFC boss Dana White says three members of the Nurmagomedov team were arrested and later released.
