Alexander Zverev Falls to 19-Year-Old Learner Tien in Acapulco

The world number two suffers a surprising defeat in the Round of 16, continuing a disappointing streak in South and Central America.

Alexander Zverev, ranked second in the world, lost 3-6, 4-6 to 19-year-old American qualifier Learner Tien at the Acapulco tournament.
Zverev's performance was marked by unforced errors, including a critical overhead miss in the first set and a collapse after leading 4-1 in the second set.
This marks Zverev's third consecutive underwhelming tournament performance, following quarterfinal exits in Rio de Janeiro and Buenos Aires.
Learner Tien, currently ranked 83rd in the world, advances to the quarterfinals where he will face Czech player Tomas Machac.
Several other top players, including Casper Ruud, Tommy Paul, and Holger Rune, also exited the tournament early due to illness or injury.