Vienna Open: Giron defeats Michelson to reach second round
Marcos Giron beat Alex Michelsen 7-6 (4), 6-3 on Tuesday. He’ll face German Alexander Zverev, the top seed, in the next round

Marcos Giron defeated Alex Michelsen 7-6 (4), 6-3 to reach the second round of the Vienna Open at the Wiener Stadthalle.
Giron, ranked No 48, will face German Alexander Zverev, the top seed, next.
Vienna ATP 500, other first-round results (Wiener Stadthalle, hard, EUR 2.470.310, most recent results first):
- Brandon Nakashima vs. Tommy Paul
- Karen Khachanov vs. Thiago Seyboth Wild
- Tomas Machac vs. Fabian Marozsan
- Grigor Dimitrov vs. Zhizhen Zhang
- Kei Nishikori vs. Jack Draper
- Dominic Thiem vs. Luciano Darderi
- Lorenzo Sonego vs. Lorenzo Musetti
- Quentin Halys vs. Gael Monfils
- Frances Tiafoe vs. Cameron Norrie
- Alex De Minaur (2) beat Jan-Lennard Struff: 2-6, 6-2, 6-2
- Miomir Kecmanovic beat Mariano Navone: 6-2, 6-4
- Jakub Mensik (Q) beat Alexei Popyrin (8): 7-6 (3), 6-2
- Alexander Zverev beat Joel Josef Schwaerzler (WC): 6-2, 6-2
- Matteo Berrettini beat Marton Fucsovics (Q): 7-5, 6-4
- Flavio Cobolli beat Alejandro Davidovich Fokina: 7-6 (1), 6-3