Munich - Germany's Alexander Zverev advanced to the quarter-finals of the Munich Open after a straight-sets win over Argentina's Juan Ignacio Londero on Wednesday.
The world No 3, who is a two-time defending champion at his home event, won 7-5, 6-1 in 64 minutes.
Zverev will next face Chilean Cristian Garin, who upset the sixth-seeded Argentine Diego Schwartzman 6-1, 7-5.
Results from the ATP tournament in Munich on Wednesday (x denotes seeding):
Alexander Zverev (GER x1) bt Juan Ignacio Londero (ARG) 7-5, 6-1
Christian Garín (CHI) bt Diego Schwartzman (ARG x6) 6-1, 7-5
Marco Cecchinato (ITA x3) bt Martin Klizan (SVK) 6-1, 6-3
Marton Fucsovics (HUN x8) bt Thiago Monteiro (BRA) 6-7 (1/7), 6-4, 6-3