Tampa Bay Lightning defenseman Charle-Edouard D'Astous (undisclosed) is doubtful for Tuesday's Game 2 against the Montreal Canadiens, Eduardo A. Encina of the Tampa Bay Times reports. He was injured in Sunday's series opener and didn't practice on Monday. According to Lightning head Jon Cooper, Maxwell Crozier and Declan Carlile are in contention to fill in for D'Astous in Tuesday's game. Carlile skated with D'Astous's partner Emil Lilleberg on Monday. Tuesday's game would be Carlile's Stanley Cup Playoffs debut. He appeared in 42 games during the regular season but didn't do much from a fantasy perspective. Carlile recorded three points (one goal, two assists), 33 SOG, 38 blocks, and 51 hits.

Dallas Stars center Roope Hintz (lower body) will be unavailable for at least two more games, Dan Rosen of NHL.com reports. He will sit out Monday's Game 2 against the Minnesota Wild and isn't expected to be in the lineup for Wednesday's Game 3 either. Hintz last played on March 6 and isn't even skating on his own yet, which suggests he isn't close to returning. In Hintz's absence, Justin Hryckowian has gotten an opportunity on the first line at the start of the postseason. In Game 1, Hryckowian failed to register any attempts on the net but led his team with six hits in 13:00 of ice time.

Anaheim Ducks left wing Ross Johnston (lower body) isn't available for Game 1 against the Edmonton Oilers on Monday night, Derek Van Diest of NHL.com reports. Due to a lower-body injury, Johnston hasn't seen any action for close to six weeks. He was initially ruled out for 2-4 weeks. While Johnston's recovery has taken longer than expected, Ducks head coach Joel Quenneville believes he will play against Edmonton at some point during the first-round series. Johnston's return would beef up the Ducks' lineup, as he registered a team-high 192 hits in the regular season. Offensively, he contributed three goals and 11 assists in 64 games.

Ottawa Senators defenseman Artem Zub (undisclosed) will be a game-time decision on Monday against the Carolina Hurricanes. The versatile blue-liner sustained an undisclosed injury in the series opener on Saturday, and it's unclear whether he will feel well enough to play. Following the morning skate, Senators head coach Travis Green told reporters that Zub's availability will be determined after the pregame warmups. If Zub is out, Nikolas Matinpalo is set to have a larger role as a member of the top four. Lassi Thomson would step into the lineup as his replacement.