ST. LOUIS -- Darryl Sydor has returned to the Blues as an assistant coach under mentor Mike Yeo.
Sydor agreed to a three-year deal Wednesday.
The 45-year-old Sydor finished his 18-year NHL playing career with the Blues in 2009-10, then broke into coaching as Yeo's assistant the next season with the American Hockey League's Houston Aeros. Sydor went with Yeo to Minnesota and spent five years with the Wild before working as an assistant last season with the Blues' then-Chicago affiliate in the AHL.
Sydor was a defenseman for Los Angeles, Dallas, Columbus, Tampa Bay, Pittsburgh and St.