Rosen was sent to AHL Springfield on Thursday, Lou Korac of NHL.com reports.

EDGE Analysis

The move was made necessary when St. Louis activated Scott Perunovich (lower body) from injured reserve. Rosen had one assist in six games during Perunovich's absence.

Rosen was called up from AHL Springfield on Thursday, per Jeremy Rutherford of The Athletic.

EDGE Analysis

Scott Perunovich (lower body) and Justin Faulk (undisclosed) are still sidelined. Rosen has two goals and 25 points in 44 AHL games this season. He will likely be the seventh defenseman should Faulk and Perunovich not return to the lineup against Buffalo on Saturday.

Rosen was waived by the Blues on Sunday, Chris Johnston of TSN reports.

EDGE Analysis

Rosen dressed in 49 games for St. Louis last year, tallying eight goals and 18 points in the process. The 29-year-old will be among the first players promoted as an injury replacement for the Blues if he clears waivers.

Rosen scored his eighth goal of the season in Saturday's 6-1 loss to the Predators.

EDGE Analysis

He spoiled Juuse Saros' shutout bid midway through the third period by flipping the puck through traffic from the blue line and seeing it trickle through the partially screened netminder. Rosen has been in and out of the lineup since the beginning of March, but he's been providing a little offense lately when he gets a chance, scoring a goal and three points over his last four games.

Rosen scored a pair of goals on four shots in Saturday's 6-5 overtime win over the Coyotes.

EDGE Analysis

Rosen's pair of tallies came within a span of 1:49 during the third period. The Blues led 5-2 after the latter of his goals, but the lead didn't stick. The 29-year-old's path to playing time has cleared up with Niko Mikkola included in the trade that sent Vladimir Tarasenko to the Rangers, so Rosen should be an everyday player going forward. He has seven goals, eight helpers, 42 shots on net, 36 blocked shots and a plus-16 rating through 33 appearances.

Rosen logged an assist and two shots on goal in Monday's 2-1 win over the Senators.

EDGE Analysis

Rosen hasn't been able to replicate scoring in three straight games to close out December, but he's managed a decent three assists through eight January contests. The 28-year-old blueliner has been asked to play more with injuries to other Blues recently. Rosen has enjoyed a solid campaign with 12 points, 32 shots on net, 32 blocked shots and a plus-14 rating through 28 appearances.

Rosen notched a goal and a plus-1 rating during a 5-2 loss to the visiting Wild on Saturday.

EDGE Analysis

Rosen scored in his third game in a row, lifting the Wild to a 1-0 first-period lead. The 28-year-old defenseman started his career with a minus-8 rating in 38 outings with the Maple Leafs and Avalanche. In 20 appearances this season, Rosen is a plus-11. Rosen, who added two shots and one block in the defeat, had four goals in 55 career games before the recent surge.

Rosen tallied a goal on his lone shot attempt in Thursday's 3-1 victory over the Blackhawks.

EDGE Analysis

Rosen intercepted a wayward pass in the offensive zone before depositing a wrist shot past Alex Stalock to give St. Louis a 2-1 lead in the second period. The 28-year-old blueliner has goals in consecutive games after serving as a healthy scratch in the Blues' previous eight contests. Rosen set a new career-high with eight points as he's tallied four goals and four assists in 19 games.

Rosen scored a goal on two shots in the Blues' 5-4 loss in overtime to the Maple Leafs on Tuesday.

EDGE Analysis

Appearing in the lineup for the first time since Dec 8, Rosen made his return count, scoring the opening goal for the Blues past a sprawling Ilya Samsonov. This performance gives Rosen points in two straight games and his first goal in 11 games. On the season, Rosen has three goals and seven points in 18 games.

Rosen posted an assist and blocked two shots in Thursday's 5-2 loss to the Jets.

EDGE Analysis

Rosen helped out on a Robert Thomas goal in the second period. Solid defensive play has helped to keep Rosen in the lineup, but he has just two helpers in his last 10 outings. The 28-year-old blueliner is up to six points, 21 shots on net, 20 blocked shots and a plus-9 rating through 17 appearances. He's one point and one shy of matching his career-high totals in those respective areas from last season.