Mexican Open: Altmaier fails to back up Zverev win, falls to Kecmanovic

Serb Miomir Kecmanovic advanced to the quarter-finals of the Mexican Open by beating German Daniel Altmaier 6-4, 6-4 at the Princess Mundo Imperial Resort in Acapulco on Wednesday night.

Kecmanovic, ranked No 53, will play Jack Draper next.

In the previous round of the Acapulco tournament, the Serb won against Argentinian wildcard Diego Schwartzman (4-6, 6-3, 6-1).

Altmaier, ranked No 57, won against top seed Alexander Zverev (6-3, 3-6, 6-3) in the previous round of the Acapulco tournament.

Acapulco ATP 500, other second-round results (Princess Mundo Imperial Resort, hard, USD 2.206.080, most recent results first):

• Casper Ruud vs. Dusan Lajovic
• Aleksandar Kovacevic vs. Holger Rune
• Ben Shelton vs. Matteo Arnaldi: thursday
• Flavio Cobolli vs. Stefanos Tsitsipas: thursday
• Dominik Koepfer beat Frances Tiafoe (8): 6-4, 5-7, 6-1
• Alex De Minaur (3) beat Sebastian Ofner: 6-1, 6-3
• Jack Draper beat Yoshihito Nishioka (LL): 6-3, 6-0