Hathaway exited Thursday's 5-4 loss to the Pittsburgh Penguins with only 5:39 time-on-ice due to an upper-body injury and will be sidelined indefinitely. The 33-year-old Hathaway is averaging 11:53 time-on-ice recording 18 points (8G / 10A), 48 penalty minutes, and 218 hits in 60 games this season.

Klim Kostin (lower body) will return to the lineup after a multi-week absence, resulting in Grundstrom being a healthy scratch. The 27-year-old Grundstrom is averaging 9:12 time-on-ice and has seven points (2G / 5A) in 39 games this season.

The Flyers have outscored their opposition 15-6 during a three-game winning streak and will roll with Ersson between the pipes on Thursday against the Pittsburgh Penguins. Ersson was excellent in his most recent outing, saving 23 of 24 shots (.958 SV%) in a 6-1 win over the Penguins. The 25-year-old netminder has a 2.20 GAA and .926 SV% in his last five outings (3-1-1). The Flyers enter Thursday's rematch against the Penguins as slight -104 road underdogs.

Vladar has not played since February 2nd when he saved 29 of 31 shots (.935 SV%) in a 3-2 win over the Seattle Kraken but will return to the crease on Tuesday against the Washington Capitals. The 27-year-old Vladar has a 3.07 GAA and .888 SV% in 22 games this season (7-10-5). The Flames enter Tuesday's contest as +165 road underdogs against a red-hot Capitals club that has scored 15 goals in their previous two contests

Ersson wasn't heavily tested in Philadelphia's return to action on Saturday but saved 15 of 18 shots (.833 SV%) in a 6-3 win over the Edmonton Oilers. The 25-year-old Ersson has played well lately, posting a 2.32 GAA and .916 SV% in his last 15 outings (10-4-1). The Flyers enter Tuesday's contest as -137 home favorites against a Pittsburgh Penguins squad they defeated 3-2 on February 8th.

Zegras was not issued a penalty on the play but has been given a three-game suspension for his hit on Michael Rasmussen of the Detroit Red Wings. The 23-year-old Zegras is averaging 17:03 time-on-ice and has 16 points (7G / 9A) in 34 games this season. He will be eligible to return to the lineup on March 4th against the Edmonton Oilers.

Walker Duehr will be a healthy scratch for the Sharks on Monday against the Winnipeg Jets, allowing Grundstrom to re-enter the lineup. The 27-year-old Grundstrom is averaging 9:12 time-on-ice and has seven points (2G / 5A) in 38 games with the Sharks this season.

Zamula missed eight consecutive games leading into the break for the 4-Nations Face Off due to an upper-body injury, but will be available to return to the lineup on Saturday against the Edmonton Oilers. Before his injury, the 24-year-old Zamula was averaging 16:52 time-on-ice and had 11 points (3G / 8A) in 39 games.

Ristolainen missed Philadelphia's final three games leading into the break for the 4-Nations Face Off, but will be available to return to action on Saturday against the Edmonton Oilers. The 30-year-old defenseman is averaging 20:31 time-on-ice and has 15 points (2G / 13A) in 54 games this season.

Tippett missed four consecutive games leading up to the break for the 4-Nations Face Off but will return to the ice on Saturday against the Edmonton Oilers. The 25-year-old Tippett has 30 points (14G / 16A) and 75 hits in 52 games this season.