Grand Slam champions Wawrinka, Cilic lose at Geneva Open

GENEVA (AP) Grand Slam title winners Stan Wawrinka and Marin Cilic were beaten in the Geneva Open quarterfinals by unseeded opponents on Thursday.

Top-seeded Stan Wawrinka, ranked No. 9, went down 6-7 (5), 6-4, 6-4 to 74th-ranked Federico Delbonis of Argentina.

The 2014 Australian Open champion extended an unwanted record of never having won a tour title in his native Switzerland.

In the semifinals, Delbonis will play sixth-seeded Joao Sousa of Portugal, who rallied to a stunning victory against Pablo Andujar of Spain 6-4, 2-6, 7-6 (6).

Sousa faced four match points trailing 6-2 in the decisive tiebreaker then reeled off six straight points to take victory.

Second-seeded Cilic was beaten 7-5, 6-3 by Santiago Giraldo of Colombia.

Cilic, who has been troubled by a shoulder injury this year, has advanced to only one tournament semifinal since winning the U.S. Open title last September.

The 10th-ranked Croatian had nine aces on the clay-court surface but failed to create a break-point chance against the 67th-ranked Giraldo.

Giraldo will play Thomaz Bellucci of Brazil in an all-unseeded semifinal.

Bellucci, a two-time champion at the neighboring Swiss Open in Gstaad, beat Albert Ramos-Vinalos of Spain 6-0, 1-6, 6-3.