As the embattled music mogul faces down a torrent of civil suits and a federal sexual abuse and racketeering case, one his lawyers, Anthony Ricco, is calling it quits. In a motion filed in New York Federal Court Friday,

One of Sean "Diddy" Combs' lawyers filed a motion to withdraw from the mogul's defense team. Anthony Ricco did not provide a reason for his request, in which he wrote, "under no circumstances can I continue to effectively serve as counsel for Sean Combs," according to an affidavit obtained by PEOPLE.

EXCLUSIVE: Just over two months before Diddy's sex trafficking trial is set to start, there are reports of a defense team consumed with in-fighting & lawyer quitting