NEW YORK — American teenager Iva Jovic outlasted her close friend Alexandra Eala of the Philippines in a grueling three-hour, three-minute battle Saturday night at Arthur Ashe Stadium, winning 7-5, 3-6, 7-5 to reach the fourth round of the U.S. Open for the first time in her young career.

The 14th-seeded Jovic, 18, extended her perfect head-to-head record over Eala to 3-0 with the victory, having previously defeated the 17th-seeded Filipina at Roland Garros and at the HSBC Championships at Queen's Club earlier this year. The win sends Jovic into a fourth-round matchup against fourth seed and 2023 champion Coco Gauff, who defeated Cristina Bucsa, 6-3, 6-4, earlier in the tournament.

Both Eala, 21, and Jovic had reached the third round through relatively comfortable straight-set victories, with Eala defeating Mary Stoiana, 6-1, 6-2, and Oleksandra Oliynykova, 6-1, 6-4, while Jovic advanced past Magdalena Frech, 7-5, 6-3, and Francesca Jones, 6-4, 6-4. Saturday's meeting, by contrast, developed into one of the most intense and closely fought matches of the entire tournament.

Jovic struck first, capitalizing on two double faults from Eala to earn the match's first break of serve and take an early 2-1 lead in the opening set. Eala immediately threatened to break back, earning three break points on Jovic's serve in the fourth game, but the American held her nerve, winning five consecutive points to fend off the threat and extend her lead to 3-1. Jovic continued applying pressure, breaking again in........

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