Sixth-seeded Benoit Paire of France defeated Santiago Giraldo of Colombia 6-4, 6-4 Monday to reach the second round of the Stockholm Open.
Paire will next face Pablo Carreno Busta of Spain, who advanced when Jurgen Zopp of Estonia quit because of injury at 5-5 in the first set.
In Monday's other first-round match, Igor Sijsling of the Netherlands beat Tobias Kamke of Germany 6-4, 6-2.
Top-seeded David Ferrer of Spain and No. 2 Milos Raonic of Canada have byes into the second round.