Tyson Fury has stoked the fires of controversy surrounding his July rematch with Wladimir Klitschko by labelling the former world champion 'a pussy and a boring old c***'.
Klitschko travels to the Manchester Arena to fight Fury on July 9 and the 40-year-old Ukrainian is in a training camp ashe prepares to try to take back the WBA, WBO and IBO heavyweight titles.
Posting on Twitter, Klitschko said: 'I arrived at camp and I'm happy to get back to work and prepare for the battle. #NowMoreThanEver.'
Unprompted, Fury responded to his rival with the message: 'u are a pussy, & a boring old c***, be ready to fall bitchko.'
It is just the latest stage of the quarrelling between the pair that will add another loud bang to the box-office promotional drum for their rematch.
Fury is no stranger to an occasional foul-mouthed rant but even Klitschko resorted to similar tactics at a press conference last month when he said to Fury about his controversial comments: 'I want to say f*** off.'
The heavyweight rivals threw jibes at each other during a heated media event building up to July's big fight in Manchester with a topless Fury telling Klitschko that a fat man beat him.
Fury pulled off his black T-shirt, mocked his own physique and told his opponent he should be ashamed not to have won their original encounter in November in Dusseldorf.
