Hertl has had a terrific season, scoring 25 goals with 23 assists (48 points) in 59 games for the Sharks. Hertl has spent all nine years of his NHL career in San Jose since being drafted No.17 overall in 2012. His new deal will take him through the 2029-30 NHL season.
Hill woke up on Monday sore with a recurrence of his lower-body injury that forced him to miss an extended period of time. Hill stopped all 29 shots that he faced in a shutout win over the Kings on Saturday.
Heinola will replace Nathan Beaulieu on the active roster after scoring two goals with 16 assists (18 points) in 31 games with Manitoba. He has played sparingly with the Jets this season, posting two assists in eight games.
Howden has missed the last two games with an undisclosed injury and did not travel out east for the Golden Knights' five-game road trip. Jake Leschyshyn will remain with the Golden Knights and should be in the lineup in Philadelphia.
Coghlan was not on the ice for the morning skate and is not expected to play because of the flu. Zach Whitecloud will return from a six-game absence to replace Coghlan.
Olofsson missed Wednesday's game in Montreal but will be back in the lineup in St. Louis. Olofsson will skate on a line with Casey Mittelstadt and Peyton Krebs and comes in with just four points (2G / 2A) in his last 16 games.
Hagg was a healthy scratch in Montreal on Wednesday but will replace Henri Jokiharju (lower-body) in the lineup in St. Louis. Hagg will be back on a pairing with Mark Pysyk.
Hart was scheduled to start on Monday but was unavailable due to an eye infection. He's still not 100 percent, so Martin Jones will start for the second straight night.
Olofsson was not on the ice for Tuesday's practice and will not travel to Montreal for Wednesday's game. Casey Mittelstadt moved to the wing in practice to replace Olofsson.
Hart was supposed to start Monday vs. the Hurricanes but will not be available due to an eye infection. Martin Jones will start and Kirill Ustimenko will come up from the AHL to backup. The Flyers said that Hart could be available for Tuesday's game vs. the Blues.
