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.

Mary J. Blige, MGM Rewards Slam tennis and Mardi Gras specials top this week’s entertainment lineup in Las Vegas.

American Learner Tien knocked out No. 1 seed Alexander Zverev, while three players exited citing stomach issues.

The Mexican Open faces unexpected challenges as a stomach bug sidelines top-seeded players, including Casper Ruud, Tommy Paul ...

Find out how to watch, live stream, TV channel, tournament information, & more for Alejandro Davidovich Fokina vs. Rodrigo ...

World number two Alexander Zverev suffers a shock early exit from the Mexican Open with a straight-set defeat against teenage ...

Tennis Hot Topics Learner Tien has become the youngest American man in over 20 years to defeat a top-three player after ...

Players dropping like flies today at ATP 500 Acapulco today. After Tommy Paul withdrew just before his match with stomach ...

Casper Ruud was one of three top seeds to exit the Mexican Open on Wednesday due to the effects of a stomach bug, while both ...

Tallon Griekspoor rallied to defeat defending champion Ugo Humbert of France 4-6, 6-3, 6-2 and reach the quarterfinals at the ...

Top seed Alexander Zverev and fifth seed Ben Shelton were eliminated inside Arena GNP Seguros. Zverev went down to 19-year-old qualifier Learner Tien, 6-3, 6-4, while Shelton was on the receiving end ...