| 2021 season | |||
|---|---|---|---|
 | |||
| General manager | Garth Lagerwey | ||
| Head coach | Brian Schmetzer | ||
| Stadium | Lumen Field | ||
| Major League Soccer | Conference: 2nd Overall: 3rd | ||
| MLS Cup Playoffs | First round | ||
| U.S. Open Cup | Canceled | ||
| Leagues Cup | Runners-up | ||
| Top goalscorer | League: Raúl Ruidíaz (17)[1] All: Raúl Ruidíaz (19) | ||
| Highest home attendance | League: 45,737 (Aug. 29 vs. Portland)[1] | ||
| Lowest home attendance | League: 7,042 (Apr. 16 vs. Minnesota)[1] | ||
| Average home league attendance | League: 25,618[1] | ||
| Biggest win | 4–0 vs. Minnesota (Apr. 16)[1] 6–2 at Portland (Aug. 15)[1] | ||
| Biggest defeat | 0–3 at Los Angeles (Oct. 26)[1] | ||
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The 2021 Seattle Sounders FC season was the club's thirty-eighth year of existence, and their thirteenth season in Major League Soccer, the top flight of American soccer. The team was under the management of Brian Schmetzer in his fifth full MLS season as head coach of the Sounders. Seattle were the reigning Western Conference champions and lost to Columbus Crew SC in the MLS Cup 3–0.[2]
Due to the COVID-19 pandemic, the capacity of Lumen Field was limited to 7,000 in March and increase in stages. The stadium's full capacity was restored in July with the addition of COVID-19 testing and vaccination requirements.[3]
The Sounders finished second in the Western Conference and qualified for the 2022 CONCACAF Champions League as a result. They were also runners-up in the 2021 Leagues Cup, losing to Club León in the final.
- ^ a b c d e f g "Seattle Sounders FC Performance Stats – 2021–22". ESPN. Retrieved October 27, 2023.
- ^ "Columbus Crew SC 3, Seattle Sounders FC 0 - 2020 MLS Cup Match Recap". December 12, 2020. Retrieved December 12, 2020.
- ^ Evans, Jayda (August 29, 2021). "Sounders get close, but not in the back of the net in loss to rival Timbers". The Seattle Times. Retrieved March 14, 2023.