HOUSTON — Gustav Svensson and Will Bruin scored in the first half, and Seattle Sounders FC beat the 10-man Houston Dynamo 2-0 in the first leg of the Western Conference championship.

The second leg is Nov. 30 in Seattle.

Svensson gave the defending MLS Cup champion Sounders a 1-0 lead in the 11th minute, heading a Nicolas Lodeiro corner kick just right of the middle from eight yards out.

Bruin upped the lead to 2-0 in the 42nd minute, heading a Joevin Jones crossing pass into the left net from just right of the middle eight yards out.

“That one felt great,” Bruin, who played for the Dynamo his first six seasons, said. “I started to peel back post, and me and Joevin had made eye contact. I knew he was going to put it up there. It’s my job to go back across the grain because it freezes the goalie. That’s what happened.”

Seattle has yet to concede a goal through three games this postseason, outscoring its opponents 4-0 and missed opportunities to extend the lead further in the second half.