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Ahmed Hafnaoui had the swim of his life at just the right time on Sunday. After eeking into the men's 400-meter medal race in last place out of the eight finalists, the 18-year-old swimmer from Tunisia shocked everyone by taking home the gold in the event at the Tokyo Olympics.

Prior to the semi-finals, Hafnaoui wasn't even listed in the DraftKings Sportsbook odds of winning list, so the fact that he overtook the Australian favorites to win was extra impressive. Australia's Jack McLoughlin won the silver and American Kieran Smith took home the bronze, and though the race was close, it wasn't that close by swimming standards. Hafnaoui was the fastest swimmer, hands-down, after being the slowest of the finalists just the day before.

This, as they say, is why they play the games.

And this footage of Hafnaoui's loved ones in Tunisia reacting to his epic win is why everyone loves an underdog.

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