Slovak Lukas Klein advanced to the second round of the Swiss Open after defeating Swiss Stan Wawrinka, the No 8 seed, with a score of 7-6 (4), 2-6, 7-5 at the Roy Emerson Arena in Gstaad. Klein, currently ranked No 118, is set to face qualifier Quentin Halys in the next round.
In other first-round results at the Gstaad ATP 250 tournament, the following matches took place at the Roy Emerson Arena on clay courts: Botic van de Zandschulp defeated Dominic Stricker (WC) 6-3, 6-3, Matteo Berrettini (6) beat Pedro Cachin 6-4, 7-6 (2), Gustavo Heide (Q) overcame Stefano Napolitano 7-6 (4), 5-7, 7-6 (3), Hamad Medjedovic defeated Marc-Andrea Huesler (WC) 6-7 (3), 7-6 (2), 6-3, Quentin Halys won against Richard Gasquet 7-6 (4), 7-6 (5), Yannick Hanfmann emerged victorious against Nicolas Moreno De Alboran (LL) 7-6 (2), 6-7 (2), 6-4, Daniel Elahi Galan defeated Vit Kopriva 6-3, 6-2, Juan Pablo Varillas (Q) beat Dominic Thiem 6-3, 5-7, 7-6 (4), Fabio Fognini (7) defeated Titouan Droguet (Q) 6-4, 6-3, Jan-Lennard Struff (5) won against Albert Ramos-Vinolas 7-6 (6), 7-6 (4), and Leandro Riedi (WC) defeated Gregoire Barrere 7-6 (2), 7-5.
