Madison Keys stunned third-seeded Jessica Pegula in straight sets to reach the US Open quarterfinals on Monday, while Aryna Sabalenka powered into the last eight with a dominant win over Elise Mertens.
Keys, the 2017 US Open runner-up, won 7-6(3), 6-3 to set up a meeting with 2016 champion Angelique Kerber.
The American was in control for most of the match, but Pegula had a chance to break in the first set at 5-5. However, Keys saved the break point and then won the tiebreak.
In the second set, Keys broke Pegula twice to take a 4-1 lead and never looked back.
Sabalenka, the seventh seed, was equally impressive in her 6-1, 6-2 win over Mertens.
The Belarusian broke Mertens six times in the match and never faced a break point herself.
Sabalenka will next face either Paula Badosa or Leylah Fernandez.
Here are some other details about the matches:
- Keys’ win was her first over a top-10 player since 2019.
- Sabalenka has now won 12 consecutive matches.
- She is the only player in the women’s draw to have not dropped a set so far.
The quarterfinals will be played on Tuesday and Wednesday.