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St. Louis Blues trades for 2021-22
| St. Louis Blues acquire | Date | Boston Bruins acquire | ||
|---|---|---|---|---|
 | Brady Lyle | March 28, 2022 | Future considerations |  |
| St. Louis Blues acquire | Date | Detroit Red Wings acquire | ||
|---|---|---|---|---|
| Nick Leddy | March 21, 2022 | Oskar Sunqvist |  |
| Luke Witkowski | Jake Walman | |||
| 2023 2nd round pick | ||||
| St. Louis Blues acquire | Date | Minnesota Wild acquire | ||
|---|---|---|---|---|
| Will Bitten | December 29, 2021 | Nolan Stevens |  |
| New Jersey Devils acquire | Date | St. Louis Blues acquire | ||
|---|---|---|---|---|
 | Jon Gillies | December 15, 2021 | Future considerations | |
| Toronto Maple Leafs acquire | Date | St. Louis Blues acquire | ||
|---|---|---|---|---|
 | Kyle Clifford | November 16, 2021 | Future considerations | |
| Ottawa Senators acquire | Date | St. Louis Blues acquire | ||
|---|---|---|---|---|
 | Zach Sanford | September 25, 2021 | 2022 conditional 4th round pick | |
| Logan Brown | ||||
| Comment: If Brown plays more than 30 regular season games in 2021-22, the conditional draft pick will be removed from the deal. | ||||
| St. Louis Blues acquire | Date | New York Rangers acquire | ||
|---|---|---|---|---|
| Pavel Buchnevich | July 23, 2021 | Sammy Blais |  |
| 2022 2nd round pick | ||||