Learner Tien, a 19-year-old from California, took down top-seeded Alexander Zverev 6-3, 6-4 to advance to the Acapulco Open ...

Friday's win in Rio de Janeiro is the 24-year-old Francisco Comesana's first victory over a top-five ranked opponent.

Alexander Zverev has had multiple chances to become World No. 1, but he hasn't taken them yet, and many wonder whether he ...

Zverev, the top seed at the Acapulco Open, went down 6-3 6-4 to the 19-year-old American on Wednesday. Tien, who claimed a ...

Zverev's disappointing golden swing continued on Wednesday as he suffered another shock exit. After losing early in Buenos ...

Australian Open finalist Alexander Zverev suffered another setback when he was beaten 6-3, 6-4 by American qualifier Learner ...

A month after Daniil Medvedev's shocking Australian Open exit, Alexander Zverev lived an even more chastening experience in Acapulco.

Alexander Zverev disappointed a lot in February, not achieving brilliant results in any of the tournaments he played. After ...

Alexander's latest setback came against the 19-year-old Learnen Tien in the second round in Acapulco. A teenager ousted the ...