McGregor loses via submission in UFC return

Conor McGregor's UFC return ended with a loss to the unbeaten Khabib Nurmagomedov. Khabib improved to 27-0 and retained his lightweight title with a fourth-round submission. McGregor, in his first UFC fight since 2016, was dominated throughout in Las Vegas. Khabib jumped out of the octagon after his win, sparking a brawl that marred the bout.