Seattle Sounders FC host the fourth match in the 2017 Cascadia Cup. The Portland Timbers lead the rivalry with 3 points and a plus one goal differential in their only match. Vancouver is in second with three points in two matches. Seattle lost their only Cascadia Cup game in 2017.
Portland enters the game with a 5-4-3 +2 record good for 5th in the West and 10th overall. They are 2-3-1 -4 on the road. Seattle is 8th/18th with a 3-5-4 -3 record. At CenturyLink Field their record is poor 2-1-2 +2.
Mark Geiger, former World Cup official, is the center referee.