CAGE fighting star Michael Bisping must pay his former agent more than £320,000 — and has been reprimanded by a top judge for scuffling outside court.

Bisping has been locked in a costly High Court battle with Anthony McGann, who claimed a slice of his worldwide earnings between 2005 and 2011.

Judge Richard Salter QC said their scuffle in a court waiting area during the case went to show the "degree of ill-feeling".

The court heard McGann had "greatly exaggerated" his claim against the fighter and "put forward false documents and false evidence".

Bisping, from Clitheroe, Lancashire, is a star of the ultimate fighting championship and a former UFC middleweight champion.

Despite his denials, Judge Salter ruled that he did sign a management agreement with McGann in July 2005 and the agent was entitled to his cut.

But he said McGann's evidence in court "varied between the aggressive and the obsequious."

"In a number of respects his evidence was, in my judgment, plainly untruthful," the judge added.

Letters and invoices the agent hoped would boost the value of his claim were "recent fabrications".

The judge added: "Mr Bisping was a knowing participant with Mr McGann in the scheme to defraud the Australian tax authorities by overstating Mr Bisping's expenses in 2010 and 2011."

Although the final financial details have yet to be hammered out, the judge ruled that Bisping owes his former agent more than £320,000 in commission.

Judge Salter said he would hear further argument on who should have to pay the huge legal costs of the case.

The judge said he was informed by security staff that there had been "a scuffle between Mr McGann and Mr Bisping" in the waiting area outside the courtroom.

He added: "I cautioned them that such behaviour could not be tolerated."