CONOR MCGREGOR has told Nate Diaz to "shut your bitchass up" in a now-deleted tweet following Max Holloway's controversial loss at UFC 251.
The Notorious has a long-standing history with the Stockton Slugger after their two epic battles back in 2016.
The two fan favourites first met in a welterweight clash at UFC 196, with Diaz earning victory via submission in the second.
Five months later the pair went toe-to-toe again, this time McGregor edging the win via a majority decision.
Diaz has been vocal in his quest for a trilogy fight with the Irishman ever since, telling him to “Shut ur bitchass up” back in May.
McGregor has now fired back with the exact same phrase following his rival's assessment of UFC 251.
Rose Namajunas exacted her revenge over Jessica Andrade in three rounds.
But Max Holloway was denied the chance at redemption after Alex Volkanovski controversially retained his featherweight title on Saturday's co-headliner by a split decision victory.
And close friend Diaz joined Dana White in claiming that ‘Blessed’ had been robbed by the judges.
He wrote on Twitter: “Shoutout [sic] to Rose and Max, they robbed Max tho [sic] but 100 to the real fighters out there.”
Yet McGregor took exception to this and hastily replied ‘Shut your bitchass up before quickly deleting his response.
The latest war of words between the fighters has caused many to speculate a third fight will happen between the pair.
Diaz has not fought since his TKO loss to Jorge Masvidal in the main event of UFC 244 in November for the BMF belt.
GRIDLOCKLewis Hamilton warned he faces PRISON if he breaks isolation rules in Hungary
EUR INManchester City's two-year Champions League ban OVERTURNED in blow to rivals
THANKS A MILHow Inter helped Lukaku lose over half a stone as Man U missed dietary needs
SPURS STAR'S TRAGEDYTottenham star Serge Aurier's brother shot dead with killer on the run
MCGOLDRICK HELLPrem star subjected to vile racial abuse after Zaha abused by boy, 12
HOT WATERPolice investigating after Ronaldo’s son, 10, filmed riding a jet ski alone
While McGregor, 31, last month retired for the third time in four years after saying fighting "didn't excite" him anymore.
Dana White said: "As of right now, he's retired.
"I wouldn’t be surprised if he came out and wanted to fight somebody next year after all these different fights play out."