Pere Riba retired after only one game at the Swedish Open on Monday, allowing fifth-seeded Joao Sousa of Portugal to advance to the second round of the clay-court tournament.
Carlos Berlocq of Argentina and Martin Klizan of Slovakia won three-setters to reach the second round of the Open de Nice on Tuesday.
Carlos Berlocq stormed back to beat top-seeded Tomas Berdych 0-6, 7-5, 6-1 and win the Portugal Open on Sunday for his second career title.
Top-seeded Tomas Berdych eased into the final of the Portugal Open by beating Victor Hanescu 6-2, 6-2 on Saturday, while Carla Suarez Navarro won her first career title in the women's event.
Top-seeded Tomas Berdych fought back to beat Leonardo Mayer 3-6, 6-4, 6-4 and reach the semifinals of the Portugal Open on Friday, while second-seeded Milos Raonic lost to Carlos Berlocq 7-5, 6-4.
Fifth-seeded Joao Sousa of Portugal beat Igor Sijsling of the Netherlands 6-2, 6-4 on Monday to reach the second round of the Grand Prix Hassan II tournament.
Top-seeded Rafael Nadal reached the semifinals of the Rio Open, showing no problems with a sore back in defeating Joao Sousa of Portugal 6-1, 6-0 on Friday.
Sixth-seeded Ernests Gulbis advanced to the final of the St. Petersburg Open on Saturday by beating Michal Przysiezny of Poland 6-3, 6-3.
Joao Sousa advanced to his first career ATP tour semifinal by beating fourth-seeded Dmitry Tursunov 6-4, 6-3 Friday at the St. Petersburg Open.
Stanislas Wawrinka won the Portugal Open by beating top-seeded David Ferrer 6-1, 6-4 in Sunday's final.
Anastasia Pavlyuchenkova beat Spain's Carla Suarez 7-5, 6-2 to win the Portugal Open on Saturday.
David Ferrer led the top three seeded players into the Portugal Open semifinals on Friday, beating Victor Hanescu of Romania 6-4, 7-6 (2).
Second-seeded Stanislas Wawrinka of Switzerland rallied past Albert Ramos of Spain 1-6, 6-3, 6-4 Thursday to move into the Portugal Open quarterfinals.
Pablo Carreno-Busta of Spain upset fifth-seeded Julien Benneteau in the first round of the Portugal Open on Tuesday, defeating the Frenchman 6-3, 6-4.
Sixth-seeded Benoit Paire of France beat Igor Sijsling of the Netherlands 7-6 (5), 6-3 Monday in the opening round of the Portugal Open.
Argentina's Juan del Potro won his second consecutive Estoril Open title, using a strong serve to beat France's Richard Gasquet 6-4, 6-2 Sunday.