DOHA, Qatar (AP) -- Top-seeded Rafael Nadal is the only seed remaining at the Qatar Open after he beat seventh-seeded Ernests Gulbis 7-5, 6-4 in the quarterfinals on Thursday.
Nadal is often tested by the 24th-ranked Gulbis but has yet to lose a match to the Latvian in seven played.
This match, which was delayed by a two-hour rain delay, marked only the second time Nadal has beaten Gulbis in straight sets. The only other time Nadal beat him in straight sets was also in Doha, in the 2011 quarterfinals.
Nadal is set to play German qualifier Peter Gojowczyk. The 162nd-ranked Gojowczyk defeated fellow German qualifier Dustin Brown 6-3, 3-6, 7-6 (5) to reach his first career tour semifinal.