Sir Alex Ferguson's hairdryer treatment is the stuff of legend.
From David Beckham getting a boot kicked at him to forcing his entire team to change shirts at half-time, Ferguson often let his temper get the better of him – and he is said to have even reduced Cristiano Ronaldo to tears on one occasion early on in his Manchester United career.
And for a legendary manager such as Sir Alex, it seems there was no room for Christmas cheer if his players needed setting straight. For many, the festive season brings a welcome excuse to let your hair down and party but after one raucous event, the Premier League's most successful manager went on such a tirade that he "destroyed his leg" kicking an aluminium chair.