Mirra Andreeva was the last person on Centre Court to realize she had won her fourth-round match against Emma Navarro on Monday, a result that made her the youngest woman since 2007 to reach the Wimbledon quarterfinals.

Mirra Andreeva secured one of the biggest wins of her young tennis career Monday at Wimbledon – but for a few moments after match point, she had no idea.

So locked in and focused was Andreeva that she didn't realize she had won the match. Andreeva, up 6-2, 5-3 and 0-40 with Navarro on serve, won the point—and the match—when the American's attempted approach shot on a short ball was deposited into the net.