 Seattle once again played Santos Laguna in the semifinal, but failed to advance after losing 1–0 at home and drawing 1–1 in Torreón.The Sounders continued their five-year streak of setting a new MLS average attendance record, reaching 44,038 in 2013.The Sounders began the MLS season with a run of five matches without a win, the worst start in the team's history, due to injuries to key players.