American Learner Tien knocked out No. 1 seed Alexander Zverev, while three players exited citing stomach issues.
It was the 19-year-old's second career win over a top-five player, after he defeated Daniil Medvedev in the Australian Open second round in January.
Learner Tien, a 19-year-old from California, took down top-seeded Alexander Zverev 6-3, 6-4 to advance to the Acapulco Open ...
Learner Tien earned the best win of his career when he shocked World Number-two Alexander Zverev 6-3, 6-4 at the Mexican Open ...
Day 3 of the ATP Mexican Open in Acapulco was chaotic, as all five of the top seeds were out. Tommy Paul and Casper Ruud ...
The ATP 500 Mexican Open saw a massive elimination of favourites in the Round of 16, including Alexander Zverev, Ben Shelton, and Casper Ruud. The draw is now wide open for players who weren’t ...