“When you see them play on Tuesday, it’s catastrophic, it’s awful, when we all remember Manchester with Roy Keane, Beckham – all the great players, they played offensive football.
“It was beautiful and passionate. Old Trafford was the Theatre of Dreams, now it’s the Theatre of Nightmares with this guy. It’s crazy."
The biggest defence of Mourinho this season has been his ability to win numerous titles over the years - a fact that Dugarry doesn't seem to care about.
“What he doesn’t understand is that we don’t give a sh** about his titles, we just want emotion and to watch good football, which he’s incapable of giving us, but he won’t realise that because he’s so far up his own a***," he said.
Mourinho has endured a frustrating season with Manchester United (Image: GETTY )
Beckham and Keane celebrate happier times at United (Image: GETTY )
Dugarry is furious with the way things are panning out at United (Image: GETTY )
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Dugarry played for some top European clubs including Barcelona, AC Milan and Bordeaux before finishing his career at Birmingham City in the Premier League.
He finished his tirade by once again swiping at Mourinho's achievements.
“We don’t care at all about what you’ve won, mate," Dugarry said.
United have endured a pretty dismal season so far.
Mourinho will have to buck his ideas up for the upcoming festive fixtures (Image: GETTY)
Mourinho explains why he kicked water bottles after United win
They're seventh in the Premier League and haven't impressed for the most part in the Champions League.
Mourinho has continuously defended himself by using his previous achievements - but the Portuguese will have to focus on the upcoming busy Christmas schedule if United are to keep up with their league rivals.
United travel to Southampton tomorrow before hosting Arsenal on Wednesday in a huge clash that could once again make or break the 55-year-old's season.