The four-time Italian prime minister made the pledge during the team's Christmas dinner on Wednesday.
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Currently sitting 14th in their first season in Serie A, the Biancorossi are a healthy nine points above the bottom three.
And if there was any ever added motivation for them to avoid relegation, Berlusconi has told his players he will bring a 'bus full' of prostitutes into the changing room if they beat two of the country's top clubs.
Quoted by Football Italia, said: "We found a new coach [Raffaele Palladino], who was at our youth team, he is good, smart, kind, and able to stimulate [motivate] our lads.
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"I decided to add an extra stimulation.
"So I told the lads you will play Milan, Juventus, etc, so if you beat one of these big teams, I will have you greeted in the locker room by a bus full of w*****."
While the players are claimed to have burst out in laughter, female senator Daniela Sbrollini didn't see the funny side as she labelled it as 'misogynist language from Berlusconi'.
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She added that it was 'a joke in bad taste that leaves you speechless'.
Berlusconi has since taken to Twitter to address his comments, where he declared his joke was just an incentive for his squad to perform well after the international break.
He posted: "Frankly I did not think, and I doubt anyone could imagine, that a simple 'locker room talk' comment that was a joke and clearly paradoxical, which I said to my Monza players, could spark responses that are as malevolent as they are banal and unrealistic.
"I feel sorry for these critics.
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"Perhaps it is their absolute lack of humour that makes them so sad and also so gratuitously nasty in attacking those they consider to be enemies.
"But it is Christmas. So I wish them all the best too."
Berlusconi has had his fair share of bad press in the past, with his political career beset by corruption and sex scandals.
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He was forced to resign as Prime Minister in 2011 as a result of his 'bunga-bunga' parties.
In a major boost for Monza, Arsenal loanee Pablo Mari is back in training following his shock stabbing in October.
The Spanish centre-back was stabbed in a frenzied knife attack in a Carrefour supermarket, which left one dead.