The three-weight Irish champion was slapped with an eight-month suspension following a fractious weigh-in for his fight with Shayne Singleton on the Joseph Parker v Hughie Fury undercard.
After being separated at the press conference, McDonagh shoved Singleton in the neck – prompting an extremely angry reaction from the English boxer – before swigging from a bottle of Guinness onstage.
McDonagh, who is licensed by the Boxing Union of Ireland, went on to win the bout the following night – arguably claiming the best result of his career with a close points triumph.
However, he now finds himself unable to step into a British ring until the Summer, with the BBBoC confirming to Irish-Boxing.com that 40 year old McDonagh is indeed serving an eight-month suspension.
It is thought that McDonagh can fight on Boxing Union of Ireland shows while his BBBoC suspension is in place.
The Connemara fighter is hopeful of one more title win to round of a career which has seen him go from journeyman to a fighter currently enjoying an eleven-fight unbeaten streak