Thiem begins US Open tuneup with late-night victory (Aug 2, 2017)

Romania's Simona Halep returns the ball against Britain's Johanna Konta during their Women's Quarterfinal Singles Match on day eight at the Wimbledon Tennis Championships in London Tuesday, July 11, 2017. (AP Photo/Tim Ireland)

WASHINGTON (AP) Top-seeded Dominic Thiem began his tuneup for the U.S. Open with an easy late-night victory at the rain-delayed Citi Open.

Taking the court shortly after 10 p.m. Tuesday for his opening-round match, Thiem dispatched Henri Laaksonen 6-3, 6-3, in 1 hour, 3 minutes. The Austrian dropped only eight points on his serve and one on his first serve in his first hard-court match since March.

”I felt good. It got really late. It’s always a little bit tricky after a longer period without matches,” said Thiem, a French Open semifinalist. ”I’m pretty happy with my performance.”

The Citi Open also includes former champion Kei Nishikori, Milos Raonic, Grigor Dmitrov and Nick Kyrgios.

”It’s such a strong tournament,” Thiem said. ”There should be basically 4 or 5 top seeds, and I’m one of them.”

Eighth-seeded Jack Sock beat Marius Copil 7-6 (2), 7-6 (6) in a match that was delayed more than 3 hours by rain.

On the women’s side, top-seeded Simona Halep defeated the 2015 Washington champion, Sloane Stephens, 7-6 (3), 6-0. Halep will face Mariana Duque-Marino in the second round. Stephens was playing her second match of the season after missing nearly a year with a stress fracture in her foot.

Halep, who reached the quarterfinals at Wimbledon, is ranked No. 2 behind Karolina Pliskova.

Ekaterina Makarova stopped Jamie Loeb 7-6 (4), 6-3, and Monica Puig beat Louisa Chirico 6-4, 6-4. The rain delay forced the women’s night matches to be postponed to Wednesday.