Learner Tien set-up an all-American last-four clash against close friend Alex Michelsen at the NextGen ATP Finals on Friday by knocking out top seed and 2023 runner-up Arthur Fils.

The ATP Next Gen Finals in Jeddah, Saudi Arabia is into the semifinal stage, with an all-American showdown in one and a berth for the youngest player in the field in the other. A reminder of the draw: favorite and world No.

Eighth-seeded Joao Fonseca of Brazil had 11 aces and saved four of five break points while posting a 3-4 (4), 4-3 (8), 4-3 (5), 3-4 (4), 4-3 (5) victory over third-seeded Jakub Mensik of the Czech Republic in the Next Gen ATP Finals on Friday in Jeddah, Saudi Arabia.

Second-seeded Alex Michelsen won an all-United States matchup against seventh-seeded Nishesh Basavareddy 2-4, 4-3 (5), 4-3 (4), 4-2 on Wednesday as the Next Gen ATP Finals got underway in Jeddah, Saudi Arabia.

The best 20-and-under men's players in the world meet in Jeddah, Saudi Arabia for the final event of the 2024 tennis season.