Picture UFC superstar Conor McGregor and the type of things that spring to mind will probably involve a lot of tattoos, a mighty fine ginger beard, the physique of an elite athlete and a razor sharp tongue.
Of course, it hasn't always been that way. Back in his school days in his native Ireland, 'The Notorious' looked like butter wouldn't melt in his mouth.
How do we know? Thanks to the Dublin-based Tallaght Echo newspaper who, this week, posted online an old photo of McGregor posing for a class photograph. Scroll down this article to see the image for yourself.
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Far from the feared UFC fighter he has become in recent years, McGregor looks quite the angelic child in the photo - the Coláiste de hÍde student complete with a prototypical 1990s blonde bowl cut.
He was apparently a Manchester United support in his youth, though, so perhaps we have David Beckham's iconic blonde curtains to blame for the hair style.
You'd be hard pressed to recognise him from just the picture alone but, of course, McGregor has been on quite a journey since it was taken a couple of decades ago.
It's not clear how old the Irishman is in the above photo, but biographies on the star suggest he didn't start taking part in combat sport until the age of around 12 so it might be before his fighting days had begun.
The current UFC featherweight champion was clearly a natural, however, and, despite his recent loss to Nate Diaz at UFC 196, is arguably the biggest fighting draw in the world right now.
In the 22 Mixed Martial Arts fights that have come in between the schoolboy photo and his last bout on March 5, McGregor came out victorious in 19 of them - winning 17 by knockout and developing a reputation as one of the most fearsome fighters on the planet in the process.
He has become a huge star across the world and is instantly recognizable, particularly in his native Ireland.
Seeing McGregor, then, as he was before his rise to the top had all begun is about as unique as seeing him come out on the losing side in a fight.
Talking of defeat, the 27-year-old will be looking to avenge his most recent loss when he takes on Nate Diaz in a rematch at UFC 200 on July 9.
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