John Tucker trades
| Buffalo Sabres acquire | Date | New York Islanders acquire | ||
|---|---|---|---|---|
 | future considerations | January 21, 1991 | John Tucker |  |
| Buffalo Sabres acquire | Date | Washington Capitals acquire | ||
|---|---|---|---|---|
| John Tucker | July 5, 1990 | cash |  |
| Buffalo Sabres acquire | Date | Washington Capitals acquire | ||
|---|---|---|---|---|
| future considerations (John Tucker) | January 5, 1990 | John Tucker | |