Team Logo. Seattle Sounders 2 is a team in the USL Pro Division. They are the reserve team of the Seattle Sounders FC. They are commonly referred to as "S2." Retrieved from "https://prosportsteams.fandom.com/wiki/Seattle_Sounders_2?oldid=13056" Categories: USL Pro Teams Teams in Washington Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.