Krug sustained an upper-body injury Tuesday versus the Panthers, Jim Thomas of The St. Louis Post-Dispatch reports.

EDGE Analysis

The Blues initially announced Krug's injury as lower-body when ruling him out for the remainder of the game. Either way, the 31-year-old defenseman is day-to-day heading into Thursday's matchup with the Devils.

Krug (lower body) won't finish Tuesday's game versus the Panthers.

EDGE Analysis

Krug recorded a power-play assist in the first period, his fifth helper in the last six games. He only recently returned from a lower-body injury, and it's unclear if this is a recurrence of that issue or a new injury altogether. Robert Bortuzzo would likely draw in if Krug can't play Thursday versus the Devils.

Krug notched a power-play assist, two shots on goal, four blocked shots and a minus-3 rating in Monday's 4-2 loss to the Jets.

EDGE Analysis

Krug put a perfectly weighted pass up ice to Jake Neighbours, who scored on a breakaway from the blue line in the second period. While Krug has produced four helpers, including two on the power play, in four games since he returned from a lower-body injury, the Blues haven't won in that span. The defenseman has 21 points (10 on the power play), 78 shots on net, 53 blocked shots and a minus-26 rating through 35 outings overall.

Krug (lower body) registered two assists in Tuesday's 5-3 loss to Buffalo.

EDGE Analysis

Krug was playing for the first time since Dec. 23. He has five goals and 19 points in 32 contests this season. Prior to the injury, Krug was on a four-game point streak, recording five helpers over that span.

Krug (lower body) has been lifted off long-term injured reserve ahead of Tuesday's game against the Sabres.

EDGE Analysis

It doesn't appear that the Blues are planning on easing Krug back into action following his 13-game absence, as he's expected to skate on the third pairing and the No. 1 power-play unit versus Buffalo. He's collected five goals and 17 points while posting an ugly minus-20 rating through 31 contests this season.

Krug (lower body) is getting close to returning, Blues coach Craig Berube told Jim Thomas of The St. Louis Post-Dispatch.

EDGE Analysis

Krug hasn't played since Dec. 23, but he has resumed skating and took part in Thursday's optional practice. He has five goals, 17 points, 27 hits and 43 blocks in 31 contests while averaging 19:37 of ice time this season.

Krug (lower body) took part in Thursday's optional skate, Lou Korac of NHL.com reports.

EDGE Analysis

Krug had been skating on his own, but this was his first time joining a bigger group since being placed on the long-term injured reserve list Dec. 27. He believes he's recovering quicker than expected, but it's not clear when Krug will be able to return. The 31-year-old has five goals and 17 points in 31 contests this season.

Krug was placed on long-term injured reserve with a lower-body injury Tuesday, Jim Thomas of The St. Louis Post-Dispatch reports. He'll be reevaluated in six weeks.

EDGE Analysis

This is a major loss for the Blues and fantasy managers alike, as Krug had just begun to heat up of late, having racked up six helpers and a plus-3 rating through his last six games. Now, the 31-year-old defender will be sidelined until mid-February at a minimum. Justin Faulk appears in line to get the first crack at replacing Krug on the No. 1 power-play unit.

Krug logged two assists (one on the power play), three blocked shots and a plus-2 rating in Friday's 5-4 shootout loss to the Golden Knights.

EDGE Analysis

Krug helped out on goals by Vladimir Tarasenko and Justin Faulk just two minutes apart in the second period. This gave Krug five assists in his last four games, including three power-play helpers. The 31-year-old is finding some success again on the top man-advantage unit, where he's earned eight of his 16 points through 31 outings this season. He's added 65 shots on net, 43 blocked shots, 27 hits and a minus-20 rating.

Krug posted a power-play assist and blocked two shots in Tuesday's 5-2 loss to the Kraken.

EDGE Analysis

Krug set up Pavel Buchnevich's laser midway through the third period. With four helpers (two on the power play) in his last four games, Krug has returned to productivity following a two-game absence with an upper-body injury. The defenseman has earned seven of his 15 points on the power play this season while adding 64 shots on net, 40 blocked shots, 26 hits and a minus-22 rating through 30 contests.