Leopold, 32, had two assists in 15 regular-season games for St. Louis last year after being acquired from Buffalo in March. The defenseman, who also played in all six playoff games for the Blues, had eight points and six assists in 24 regular-season games for Buffalo before being dealt to St. Louis.
"He was here for a short period of time, and I thought that his experience was something that was beneficial to our team," Blues general manager Doug Armstrong told the St. Louis Post-Dispatch. "I think that gives us maybe one of the strongest defenses in the league with both experience and youth, and it's something that is a good fit for us."
The 2012-13 season marked Leopold's 10th NHL season including stints with Calgary, Colorado, Pittsburgh, Buffalo and St. Louis. In 625 regular-season games, the defenseman has 204 points, 65 goals and 138 assists. The Golden Valley, Minn., native, who was originally selected 44th overall by Anaheim in the second round of the 1999 NHL Entry Draft, also has 16 assists in 65 playoff games.
Minnesota's fourth Hobey Baker Award winner, Leopold was a two-time All-American and ranks first in school history for goals by a defensemen (45), third in points by a defensemen (144) and fourth in assists by a defensemen (99). The two-time WCHA Defensive Player of the Year capped an impressive college career by earning the 2002 Hobey Baker Award and then leading the Gophers to the NCAA title the following day at Xcel Energy Center in St. Paul.