Arsene Wenger revolutionised the way players managed their diets when he took charge on Arsenal all of 18-years ago.
Gone were Mars bars, chips, beers and the like. In were seasonal vegetables and intravenous vitamin solutions. For some, it came as quite a shock. Here was an unknown Frenchman with wacky ideas on how to look after your body.
Fast forward to the modern day and Wenger's techniques and methods have been adopted by pretty much every major club in world football. Wenger will always stand as a game changer in the Premier League.
His commitment to keeping his players healthy runs true to this day. Earlier this year he was forced to read the riot act to midfielder Jack Wilshere after the midfielder was photographed smoking twice in the space of six months.
But even he was once the slave of the addictive substance of tobacco. 'You're lying', I hear you say. Well, it seems that there is now proof. So, there. Back when Wenger was still 'Arsene Who', he could do whatever he wanted, including smoke on the touchline.
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During his days as a coach at AS Monaco, he was seen taking a drag of his cigarette of choice whilst the game was still going on. What kind of example is that?
Luckily eight years as the manager of the tiny Ligue 1 club, coupled with a spell in the health-driven society of Japan and Wenger was transformed into the picture of health you see today, with lovely ash-free lungs to boot.