BANGKOK (Reuters) - Second seed Fernando Verdasco was eliminated in his opening match of the Thailand Open after suffering a 6-4 6-4 defeat by German Benjamin Becker on Thursday.

The Spanish world number eight, who was given a bye into the second round, looked sluggish and out of sorts as the unseeded Becker, a finalist in Bangkok in 2007, smashed nine aces past him to reach the last eight.

"It's always good to get a win over a top 10 player," Becker told reporters. "It's not every week that it happens.

"It gives me confidence for the rest of the indoor season. I had beaten him before so I knew I had a chance today."

Verdasco was the third of the seeded players to be shown the door in Bangkok after former U.S. Open champion Juan Martin del Potro was beaten by Belgian Olivier Rochus Tuesday on his comeback from a nine-month injury layoff.

Seventh seed Viktor Troicki of Serbia was knocked out earlier Thursday after a 7-6 6-2 defeat by Finn Jarkko Nieminen, who saved 14 of 15 break points to advance.

(Reporting by Martin Petty; Editing by Pritha Sarkar)