Jackman, who was drafted by the Blues in the first round (17th overall) in 1999, ranks second on the club's all-time games played list with 803 games, trailing only Bernie Federko (927).
As a rookie, Jackman tallied 19 points, 190 penalty minutes and a plus-23 rating playing alongside Al MacInnis, which helped him become the first and only Blue to win the Calder Memorial Trophy as the NHL's top rookie.
In his final seven seasons as a Blue, Jackman recorded a plus-46 rating, which tied him for 21st in the NHL in that span. He also was one of 15 defenseman to log over 500 hits and 700 blocked shots in that stretch.
Overall, Jackman accumulated 28 goals, 153 assists, 1,026 penalty minutes and a plus-53 rating in his Blues career. He also played in 39 Stanley Cup Playoff games and scored two of the most memorable goals in recent Blues playoff history. In 2013, he scored the game-winning goal late in the third period in Game 2 of the Blues' first-round series with Los Angeles. The following year, he repeated that performance by ending Game 2 vs. Chicago with an overtime game-winner.