US Open: Teenager Leylah Fernandez follows Naomi Osaka shocker by upsetting 2016 champ Angelique Kerber

Leylah Fernandez looks like she's here to stay.

The unseeded Canadian 18-year-old who shocked the world by eliminating Naomi Osaka from the US Open followed up that upset by defeating the tournament's 2016 champion Angelique Kerber 4-6, 7-6, 6-2 on Sunday.

Fernandez opened the match by going up a break in the first set, but proceeded to lose four straight games to drop the set and fell behind 3-1 in the second set. At that point, rather than fold, Fernandez hit another gear. She won 11 of the next 16 games, never dropping a service set again.

The crowd was firmly on the teenager's side as she got going:

The win means Fernandez will enter her 19th birthday Monday still in the tournament.

Fernandez entered the tournament ranked 73rd in WTA rankings. This is her first Grand Slam quarterfinal. If she wins, she will more than double her career earnings as a professional tennis player. Previously, her lone tournament win was the 2021 Monterrey Open, in which the top player she beat was ranked 41st in the world.

Things don't get easier for Fernandez from here. She will face No. 5 seed Elina Svitolina, with No. 2 seed Aryna Sabalenka potentially waiting in the semifinal.