Krug will undergo surgery to address pre-arthritic changes in his left ankle, which will force him to miss the 2024-25 season. According to the Blues, "the decision to undergo surgery was reached following an effort to rehabilitate the injury through non-surgical interventions." In an effort to replace Krug in 2024-25, the Blues signed Philip Broberg and Ryan Suter in the offseason.

Krug will be evaluated in 6-8 weeks to determine if surgery on his ankle is needed. If he does require surgery he is expected to miss the entire 2024-25 season. The 33-year-old defensemen just completed his 13th NHL season and had four goals, 39 points and a -31 plus/minus in 77 games played in 2023-24.

Marco Scandella is expected to draw into the lineup for the injured Krug. The 33-year-old Krug has 39 points (4G / 35A) in 77 games this season while averaging 21:58 time-on-ice. He is considered day-to-day for the time being.

Krug played only 12:40 time-on-ice in Wednesday's 5-2 win over the Chicago Blackhawks before exiting the game with an upper-body injury. He scored a goal before exiting the contest and has three points (1G / 2A) during a three-game point streak.

Krug's status for Thursday's game against the Calgary Flames was up in the air as he is battling an illness. The veteran blueliner has struggled lately, scoring only one point (0G / 1A) in his last six games.

Krug's status for Thursday's game against the Calgary Flames is up in the air as he is battling an illness. The veteran blueliner has struggled lately, scoring only one point (0G / 1A) in his last six games.

Krug did not pay in the Blues' 5-2 victory over the Ottawa Senators on Thursday due to a lower-body injury but will return to the ice on Saturday. Krug is averaging a modest 0.49 points per game this season but has been limited to only two points (0G / 2A) in his last nine outings.

Krug is battling a lower-body injury and will not play on Thursday against the Ottawa Senators. Krug is averaging a modest 0.49 points per game this season but has been limited to only two points (0G / 2A) in his last nine outings.

Krug has six goals, 22 assists, 103 SOG, 47 PIMs and a -32 plus/minus through 52 games this season but will miss the Blues' game Thursday due to the birth of his child. Calle Rosen will take his spot in St. Louis' lineup.

Krug has six goals, 22 assists, 102 SOG, 47 PIMs and a -31 plus/minus through 51 games this season and will play Tuesday after missing the Blues' morning skate due to personal reasons. The 31-year-old was assessed 16 penalty minutes on one play in St. Louis's previous game before being tossed.

Krug left the Blues' contest Tuesday against Carolina after just 14:17 TOI due to a lower-body injury and is now considered day-to-day and expected to miss the Blues' game Thursday. The 31-year-old has five goals, 17 assists, 86 SOG, and a -28 plus/minus through 40 games this season prior to the injury.

Krug has five goals, 17 assists, 83 SOG, 19 PIMs and a -26 plus/minus through 38 games this season but is questionable to play Saturday vs. Colorado due to an undisclosed injury.

Krug left the Blue's previous game vs. St. Louis after 7:58 TOI due to a lower-body injury but is expected to return to the lineup Thursday. The 31-year-old defenseman has five goals, 17 assists, 82 SOG, 15 PIMs and a -26 plus/minus through 37 games this season.

Krug left the Blues' previous game vs. Florida after just 7:58 TOI due to a lower-body injury and is questionable to play Thursday against New Jersey. The 31-year-old has five goals, 17 assists, 82 SOG, 15 PIMs and a -26 plus/minus through 37 games this season.