Albert Rusnák scored on a penalty kick, Jordan Morris added an insurance goal and Stefan Frei posted his 12th career clean sheet in the postseason as the Seattle Sounders beat FC Dallas 2-0 in a series opener.
Raúl Ruidíaz scored his MLS-leading 14th goal of the season and the Seattle Sounders beat FC Dallas 1-0 on Wednesday night. Seattle is unbeaten in its last three games.
Stefan Frei made three saves for his first shutout since July as both the Sounders and FC Dallas picked up a crucial point in the standings by battling to a scoreless tie.
Lucas Venuto scored for Vancouver in second-half stoppage time and the Whitecaps tied FC Dallas 2-2 on Wednesday to extend their undefeated streak to six games.
The Portland Timbers knocked out FC Dallas from the playoffs thanks to Diego Valeri scored two goals, to eliminate Dallas 2-1 and will face either Kansas City or Seattle
Not a good weekend for the Northwest soccer teams. Defender Matt Hedges scored on a header in the 87th minute to help FC Dallas beat the Vancouver Whitecaps 2-1.