Mexican Open: Altmaier upsets top seed Zverev in three sets

Daniel Altmaier defeated top seed Alexander Zverev 6-3, 3-6, 6-3 to advance to the second round of the Mexican Open at the Princess Mundo Imperial Resort in Acapulco on Tuesday.

This was the fourth career top 10 win for Altmaier, ranked No 57, and the biggest one of his career so far in terms of ranking. It was also his first win over a top 10 player on hardcourts.

The German will play Serb Miomir Kecmanovic next.

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

• Dusan Lajovic beat Rodrigo Pacheco Mendez (WC): 6-2, 6-2
• Aleksandar Kovacevic (Q) beat Jordan Thompson: 6-3, 5-7, 6-4
• Casper Ruud (6) beat Christopher Eubanks: 6-4, 6-7 (5), 6-3
• Holger Rune (2) beat Michael Mmoh (Q): 6-2, 6-3
• Dominik Koepfer beat Terence Atmane (Q): 6-4, 4-6, 6-0
• Frances Tiafoe (8) beat Max Purcell: 4-6, 6-3, 6-0
• Stefanos Tsitsipas (5) beat Roman Safiullin: 6-3, 6-4
• Flavio Cobolli (Q) beat Felix Auger-Aliassime: 2-6, 6-3, 6-2
• Matteo Arnaldi beat Taylor Fritz (4): 6-4, 4-6, 6-3
• Alex De Minaur (3) beat Taro Daniel: 6-2, 6-1
• Yoshihito Nishioka (LL) beat Nuno Borges: 3-6, 6-2, 6-4
• Sebastian Ofner beat Ernesto Escobedo (WC): 6-7 (7), 6-4, 7-6 (4)
• Ben Shelton beat Daniel Evans: 2-6, 7-5, 7-6 (5)
• Jack Draper beat Tommy Paul (7): 6-0, 6-4
• Miomir Kecmanovic beat Diego Schwartzman (WC): 4-6, 6-3, 6-1

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