Both teams are in middle of a packed schedule just ahead of the Gold Cup. Seattle hosts Orlando and then heads to Portland on Sunday. The Lions continue a road trip in Chicago after the Wednesday game against the Sounders.
OCSC will be without Cyle Larin who is suspended after a DUI arrest.
Sounders are holding their third annual Pride Day and kicking off a week-long sports Pride celebration.
Orlando City SC record (away): 7-5-4 -2 (1-4-1 -7)
Seattle Sounders FC record (home): 5-7-4 -5 (4-1-2 +4)
Venue: CenturyLink Field
Streaming: MLS Live
Television: JOEtv
Radio: KIRO 97.