The Sounders advanced to the MLS Cup Western Conference finals against Los Angeles with a 0-0 draw against FC Dallas in the second leg of the conference semifinals.
Osvaldo Alonso hit a goal in the 54th minute, and the Sounders tied FC Dallas by a score of 1-1 in the first leg of the MLS Western Conference semifinals on Sunday night.
Michel scored on a penalty kick in the 84th minute and FC Dallas beat the Whitecaps by a score of 2-1 on Wednesday night to advance in the MLS Cup playoffs.
Fabian Castillo scored in the winner in 88th minute and FC Dallas clinched a playoff berth, beating the Los Angeles Galaxy 2-1 on Sunday night.
David Texeira scored two goals to put FC Dallas past Seattle by a score of 3-1 on Wednesday. FC Dallas beat the Sounders for only the second time in the last 10 meetings.
Orlando City will pick first in the MLS expansion draft as well as the SuperDraft after winning a draw on Wednesday.
Major League Soccer Commissioner Don Garber has been given a five-year contract extension through December 2018.
By the time the MLS All-Star game rolls around on Wednesday night, coach Caleb Porter will have had two training sessions with his All-Stars.
Tesho Akindele scored in the 49th minute as FC Dallas got a 1-0 victory over Chivas USA on Sunday night. Fabian Castillo set up the goal, passing to Akindele for the easy tap-in.
FC Dallas has traded midfielder Andrew Jacobson to expansion New York City FC for a third-round pick in the 2016 MLS SuperDraft.
FC Dallas midfielder Hendry Thomas will miss the rest of the season after undergoing surgery for a torn ligament in his left knee.
Andres Escobar and Tesho Akindele each scored as FC Dallas handed the Revolution their seventh consecutive loss by a score of 2-0 on Saturday night in Frisco.