Sir Alex Ferguson was widely renowned for his short fuse as Manchester United manager.
The Scotsman, famous for giving his underperforming players the 'hairdryer treatment', was never afraid to express himself throughout his 27-year career at Old Trafford.
Passionate, motivated and a true leader, Ferguson lived and breathed football.
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However, fresh revelations have emerged portraying just how much of a fighter the 74-year-old was - literally.
Former defender Steve Bruce has recalled the incredible moment Ferguson fought police in the aftermath of a Champions League clash with Galatasaray in 1993.
Following their elimination from the European competition, a number of ex-United players got caught up in a fight with Turkish officers after Eric Cantona was assaulted in the players' tunnel.
Bruce said, per the Daily Mail: "We drew 0-0 and went out on away goals. Eric Cantona got sent off after the whistle and it was dark and dingy in there.
"Hundreds of coppers with big rottweilers barking at you, straining on the leash. One started giving Eric some gyp, so Eric decided to give it back.
"Now we're all getting battered. Bryan Robson, captain of England, he's in there. Typical Bryan, he's swung this punch and there's a hook on the wall.
"Nowhere near the fella he's trying to hit, but he's caught his elbow on it, ripped his arm completely open. Blood everywhere. He's screaming, and a big Turk comes in and boots him.
"So now we're tearing into them, trying to fight our way out of there, and over my shoulder I see Fergie come flying back down the stairs.
"He's taking his jacket off as he comes. He's over 50 years old, but he's straight in, wades in. We eventually get back to the dressing room.
"Fergie comes barging through. His hair's all over the place, his tie is under his ear and he says, 'None of you have been fighting have you? No team of mine has been fighting, eh?'
"And we're all, 'No, boss'. So he says, 'Didn't think so', and goes out and tells the world that his players have been assaulted in the tunnel.
"And I remember the door closed behind him that night, and we all looked at each other and said: 'He'll do'. He created that spirit."
By fighting alongside his players, Ferguson demonstrated the never-say-die attitude that eventually saw him win 13 Premier League titles and five FA Cups.
It could be argued the fight against Turkish police was a significant turning point in the Scotsman's career, adoring himself to the players and earning their undying respect.
The rest is history.