Jessica Pegula is moving on to a Grand Slam final for the first time in her career.

On Thursday, the sixth-seeded American erased a set and service-break deficit to defeat Karolina Muchova and reach the U.S. Open women's final.

On Saturday, the American will face Aryna Sabalenka.

Sabalenka defeated Emma Navarro in straight sets to reach her fourth straight Grand Slam final on hard-court surfaces.

Here are the top reactions from Thursday's semifinal action.

U.S. Open Thursday Results

Women's Singles

No. 2 Aryna Sabalenka def. No. 13 Emma Navarro, 6-3, 7-6(2)

No. 6 Jessica Pegula def. Karolina Muchova, 1-6, 6-4, 6-2

Aryna Sabalenka Reaches Second Straight U.S. Open Final

For the fourth consecutive time, Aryna Sabalenka is playing in a hard-court Grand Slam final.

The two-time Grand Slam champion has been dominant in her U.S. Open campaign, dropping just one total set.

In her semifinal victory over Emma Navarro, Sabalenka won 74% of points on her first serve while dismantling the American's second serve, where she won 12 of 16 total points.

Despite winning in straight sets, the No. 2 seed dealt with struggles late, including a second set in which she committed 23 unforced errors and needed a tiebreaker to secure the win.

On Sunday, a year after falling in heartbreak to Coco Gauff, Sabalenka will face Jessica Pegula with another chance at claiming her first U.S. Open title.

Jessica Pegula Reaches First Career Grand Slam Final

Jessica Pegula dropped the opening set against Karolina Muchova 6-1 in just 28 minutes.

Pegula's troubles bled into the start of the second set, where she quickly found herself on the verge of trailing 3-0.

Then she woke up.

Despite a tentative start, the No. 6 seed was able to excel by changing her gameplan.

Instead of playing at Muchova's pace, Pegula took on an aggressive approach.

As the match progressed, the 30-year-old, who had struggled in the first set during the most physical exchanges, began to embrace them, standing toe-to-toe with the Czech in the biggest moments.

In the third set, Pegula was truly dominant, winning 17 of 24 points on first serve, saving three crucial break-point opportunities late that would have likely allowed Muchova back into the match.

On Saturday, the American will play in the biggest match of her life, aiming to win her first career Grand Slam title.