Nurmagomedov caused a brawl to break out when he jumped out of the octagon to attack a member of McGregor's team moments after submitting the Irishman.
Conor McGregor made his return to the MMA world last night for the first time in two years and ultimately got beat in four rounds by champion Khabib.
Nurmagomedov jumped into the crowd and brawled with Dillon Danis, one of McGregor's coaches.
But Khabib's team face repercussions for the incident, with president Dana White ready to throw them out of the UFC.
McGregor has been accused of crossing lines in his attempts to hype the fight, which is expected to smash the previous pay-per-view buyrate record when official figures are released. Religion, family, country. Throwing stuff in Brooklyn.
But Nurmagomedov said he had been brought to a boil by McGregor's behaviour since April, when McGregor infamously attacked a bus carrying Nurmagomedov and several other UFC fighters.
Conor McGregor had infuriated Tukhugov before the fight, branding the Chechnya-born fighter a "traitor" for being team-mates with Dagestan-native Nurmagomedov. After pulling a victory out of his hat out of nowhere, Lewis went on to give one of the wildest interviews in UFC history.
"Sorry to the Nevada athletic commission, sorry to Las Vegas".
The fierce rivals at the top of Saturday's UFC 229 card combined to make $5 million in disclosed paydays - with a catch. The UFC 229 scene also recalled Floyd Mayweather's fight with Zab Judah in 2006, in which the fighters' trainers brawled in the ring between rounds and almost set off a riot; the post-fight fracas between entourages and fans at heavyweight champion Riddick Bowe's fight with Andrew Golota in 1996; and a Strikeforce MMA show in Nashville in 2010 which ended with a post-fight brawl carried live on CBS.