The Irish pundit was speaking to 2FM's Game On show after United's defeat to Manchester City.
“Mourinho may have lost the plot permanently. He bought this guy Ibrahimovic who scored a goal Saturday when the new wonderful goalkeeper dropped the ball at his feet.
“Ibrahimovic won't be in the team at Christmas. Not in the big games. He might knock over little teams like he's been doing but he's not a big game player.
“He looked overweight and tired after 20 minutes. So did Pogba, he didn't look fit.
"Neither did Wayne Rooney who ended the game with his socks around his ankles which is always a bad sign. He is a shadow of the player he was.
“And this new defender Bailly looks like he's a headbanger."