The Colorado Rapids and Seattle Sounders will meet in the Western Conference Championship after securing their places on Sunday.
Colorado will be hoping to earn their third MLS Cup appearance team history, while the Sounders are still looking for the first.
The two teams have not met in MLS since May, before Seattle's surge to the Audi 2016 MLS Cup Playoffs, but Colorado took both games between the two this season. Seattle have dominated the series historically, winning 13 of 20 all-time meetings.
Colorado Rapids vs. Seattle Sounders
April 23, 2016:Colorado Rapids 3, Seattle Sounders 1 (Dick's Sporting Goods Park)
- 20' - COL - Jermaine Jones (Shkelzen Gashi)
- 51' - COL - Luis Solignac (Dominique Badji, Mekeil Williams)
- 63' - SEA - Jordan Morris (Cristian Roldan)
- 86' - COL - Kevin Doyle (Dennis Castillo, Sam Cronin)
May 21, 2016:Colorado Rapids 1, Seattle Sounders 0 (CenturyLink Field)
- 43' - COL - Axel Sjoberg (Marc Burch)
All-time regular season: Seattle lead 13-5-2
All-time playoff meetings: Seattle lead 1-0-0
