Always one to voice his opinion, newly-instated Sunderland manager Sam Allardyce has hit out at fellow managers Arsene Wenger and Rafael Benitez in his new autobiography, 'Big Sam'.
The loud-mouthed Englishman, who faces a difficult task in keeping the Black Cats afloat after being announced as manager last week, discussed a variety of experiences during his time in the Premier League.
And most notably, the 60-year-old has revealed how he liked nothing more than to beat the 'arrogant' Arsenal manager.
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According to Sky Sports, he said: "Of course, Arsenal beat us sometimes, but we drew with them or beat them more often than expected and Wenger couldn't handle it.
"There was one time he wouldn't shake hands with me at Highbury because we got a draw. I saw him ripping his tie off and throwing it on the floor in anger.
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Allardyce, referring to his days at Bolton from 1999 to 2007, often proved a challenge for Wenger to topple.
"He takes it all very personally and has an air of arrogance. He's not one for inviting you into his office for a drink after games.
"He's a fantastic manager, I cannot deny that. But the more I could wind him up, the more I liked it."
Allardyce didn't stop there, though, also taking a swipe a Real Madrid's Benitez, claiming that Liverpool's famous Champions League comeback from 3-0 down against AC Milan in 2005 had nothing to do with him.
"Of course he can say he won the Champions League with Liverpool, which is something I never did, but it were nowt to do with him, "he said, as per the Telegraph.
"Steven Gerrard took that final by the scruff of the neck and dragged Liverpool back from 3-0 down against AC Milan to eventually win on penalties.
"I don't blame Benitez for claiming credit - but as managers we know the truth. It's like when you make a substitution in desperation and it comes off. You get all the credit for your tactical brilliance when it's often just luck."
A bit harsh, perhaps, but fortunately for fans' entertainment, nothing is off limits when it comes such outrageous claims in these kinds of publications - you need look no further than the controversies to come from Sir Alex Ferguson's 'Leading' to find evidence of that.