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Teenager Borna Coric shocked Rafael Nadal in a Swiss Open quarterfinal on Friday, defeating the world No. 3, 6-2, 7-6 (4). Let’s meet the 17-year-old who pulled the upset of the year.

1. Who’s Borna Coric?

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The 17-year-old Croatian won the U.S. Open junior title in 2013, then backed it up with a first-round upset of 29th-seeded Lukas Rosol in the main draw in 2014. He spent most of 2014 playing futures and challenger events, but had a strong fall that included a tournament win in Turkey. He’s currently ranked No. 124 in the world (down from his career high of No. 122 last week), but will shoot up the rankings after Basel. Coric had the opportunity to practice with Nadal in Mallorca last year and also considers himself a big Mike Tyson fan.

Whatever you need to know about his fortitude was displayed at a crucial moment at 4-5, 30-30 in the second set. Faced with the possibility of Nadal getting a set point, Coric calmly served an ace down the T.

2. Next week, Coric will become the first 17-year-old in the ATP’s top 100 since 2004.

Coric couldn’t believe it. (Getty Images)

That stat comes from tennis stat guru Jeff Sackmann. The last two 17-year-olds to crack the top 100 were Richard Gasquet and — wait for it — Rafael Nadal.

Coric is the highest ranked 17-year-old in the ATP and the highest-ranked player 18-and-under too. Heck, he’s the second-highest ranked player under 21. The only youngster with a better ranking is one that’s also familiar with Nadal.

3. This is Nadal’s second loss to a teenager in 2014.

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When Nick Kyrgios (the lone teen ranked ahead of Coric) upset Nadal at Wimbledon, it was the first time the Spaniard had lost to a player born in the 1990s. The Kyrgios upset was far bigger in terms of impact, given that it came in a Grand Slam, but the Aussie also has a year-and-a-half on his Croatian counterpart.

4. Like Kyrgios, Coric has some swag.

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It’s not in the form of earrings, necklaces, haircuts or compression sleeves with tattoo designs, but Coric has some of the swaggy attitude that seems to be required of young up-and-comers in the sport.

The teenager also said this to Bouchard, a French tennis writer: “I won’t ask Federer for a photo for my Facebook page even if I want one, because it’s not professional.”

5. Take nothing away from Coric, but Nadal played dreadful tennis.

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The world No. 3 hit 14 winners versus 37 unforced errors and appeared out of sorts from the onset. But again, Coric still had to win the match. If he’d blinked once, Nadal could have gotten back in it. Plenty of seasoned veterans might have folded under the pressure of beating Nadal. Coric wasn’t phased.

After the match, Nadal did what many thought he should have weeks ago: He announced he was shutting it down for 2014 in order to have his appendix removed.

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