Sissons, 22, has appeared in 19 games for the Predators in 2015-16, notching a pair of points (1G /1A) and a 59 percent success rate in the face-off circle, best among all NHLers taking at least 100 draws. He has also served as the youngest captain in Milwaukee Admirals history this season, amassing 16 points (6G / 10A) in 33 games.

Pietrangelo suffered a knee injury in the Blues win over the Wild on Saturday. He was hurt on a knee-on-knee collision with Charlie Coyle and will miss at leas three weeks. He will be reevaluated at that time and provide an update on his status.

Theodore, 20, was the 26th overall pick in 2013 and has 16 points (4G / 12A) in 27 games with his first full season with San Diego (AHL). With Cam Fowler out, Theodore was recalled and will make his debut tonight in Calgary.

Cam Fowler was injured on Sunday, so the Ducks have recalled Theodore and he could make his NHL debut on Tuesday. The 2013 first round pick has recorded 16 points (4G / 12A) in 27 games with San Diego this season.

Hertl was a late scratch prior to Tuesday’s game, but he was on the ice for the Sharks morning skate and he is expected to be in the lineup on Thursday. Hertl was set to skate on the first line on Tuesday, but tonight he will start on the fourth line.

Hertl was a late scratch on Tuesday because of a lower-body injury. He is reportedly feeling better but you will still need to keep a close eye on Hertl during the Sharks morning skate on Thursday.

There was no reports prior to puck drop that Hertl was even dealing with an injury, but when the official lineup came through, Herlt was listed as a scratch. He was expected to skate on the Sharks top line with Joe Thornton and Joe Pavelski, but that spot will now likely belong to Dainus Zubrus tonight. Consider Hertl day-to-day until more reports are released.

Theodore did not appear in a game during his call up, but he did get three practices in with the NHL squad, which should go a long way in his development.

Sissons, 22, had one goal in five games with the Predators before being sent back to the AHL. With Paul Gaustad reportedly banged up again, look for Sissons to be in the lineup on Friday. While with Milwaukee, he had eight points (3G / 5A) in 12 games.

Theodore was recalled as a precaution in advance of Tuesday’s game. His services were not needed and Josh Manson (illness) should be healthy enough to play on Thursday, so they have sent Theodore back to San Diego.

Theodore, 20, was the 26th overall pick in 2013. The 6-foot-2, 186 lbs. blueliner has eight points (1G / 7A) in 13 games with San Diego this season. Theodore had 48 points (13G / 35A) in 43 games with Seattle (WHL) last season and 19 points (5G / 14A) in his first 22 career AHL games, so producing at the NHL level is the next step.

Hanifin has been averaging just 0:51 PP TOI through the first 14 games of his NHL career, but with Murphy out indefinitely, Hanifin will start to eat up some of the 2:28 PP TOI that Murphy was seeing. Hanifin has just two assists in 14 games, but more power-play time should jump-start his production.

Sissons, 22, had two goals and five assists (7 points) in 10 games with Milwaukee. With Eric Nystrom on IR, Sissons has been recalled and could make his season debut on Tuesday. He has one goal and three assists in 17 career NHL games.

Stone will miss Tuesday and Thursday’s games vs. the Canadiens and Jets and is eligible to return on Saturday’s contest in Carolina. Thankfully for the Senators, they will get both Mike Hoffman and Curtis Lazar back from injury on Tuesday.