Conor McGregor sunk his rivalry with Khabib Nurmagomedov to a new low on Wednesday morning when the retired UFC star took to Twitter to post about the Russian's wife but the post was deleted after anger over racism and Islamophobia.
Throughout Conor McGregor's rivalry with Khabib Nurmagomedov there has been a lot of personal information been used as barbs and insults by the Irishman in an attempt to get into his opponents head.
In press conferences leading up to their fight at UFC 229, which Khabib won by submission in the fourth round to retain his lightweight championship, the Notorious called Khabib's manager a 'mad terrorist rat.'
The rivalry became a brutally personal one and ended up with Khabib attacking a member of McGregor's team in the crowd whilst member's of the Russian's team attacked McGregor in the octagon.
Last week McGregor announced his retirement on Twitter but on Tuesday his last opponent joined many others in saying they didn't believe the 30 year old would stay retired.
Following that the former dual weight UFC champion decided to continue their feud on social media but he had to quickly delete one tweet about Khabib's wife after he was called out for racism.
Khabib had claimed yesterday, in a talk at a Russian university, that he believed his rival had only announced his retirement after not getting the deal he wanted with the UFC.
Before McGregor bowed out of the sport, for the second time in his career, there had been talks of a rematch between the pair and, in a tweet he didn't delete, McGregor hinted again at the possibility of a second fight:
The whole situation has been enthralling to watch unfold but throughout it has also been an extremely ugly affair and this latest chapter might well be the ugliest of the lot.