Tyson Fury has mocked fellow heavyweight champion Anthony Joshua for opting to fight Dominic Breazeale in his first title defence.
Joshua became the IBF heavyweight champion with a sensational second-round knockout of Charles Martin at London's O2 Arena this month.
And while Fury, the WBA Super and WBO champion, prepares for a high-profile rematch with Wladimir Klitschko, Joshua announced his first defence will take place against lesser known American Breazeale on June 25th.
Fury and Joshua appear on a domestic collision course with the pair previously exchanging taunts on social media, and Fury used Twitter to condemn his fellow Briton's choice of opponent.
The 27-year-old originally posted: "Let's not give @anthonyfjoshua a hard time over his opponent, just remember he as only had 16 fights, &still Learning."
However, Fury later added: "BTW I WAS ONLY F****** WITH YOU GUYS, AJ IS FIGHTING A TOTAL BUMCITY. @EddieHearn @ it again joke, imagine if I was gonna fight brazile [Breazeale] lol."
Joshua has 16 knockout victories from as many professional fights, while Fury is unbeaten in 25 bouts - with 18 not lasting the distance.