It is unclear when Terry picked up the injury but he is questionable to play Wednesday vs. the Blackhawks. Dominik Simon and Zach Aston-Reese will be making their Ducks debuts on Wednesday, so one of them will be replacing Terry in the lineup if he can't play.
Poehling, who was added to IR on Tuesday with an upper-body injury he suffered on Sunday, is expected to be sidelined for 1-to-2 weeks.
Vatrano has had a down year in Florida, scoring just 10 goals with nine assists (19 points) in 49 games. Vatrano has scored at a 23 goals per 82 game pace in his first three seasons with the team but is on a 17-goal pace this season. Vatrano should see more important ice time in New York than her did in Florida this year.
Helleson was acquired from the Avalanche in the Josh Manson trade on Monday and signed with the Ducks on Tuesday. Helleson, who has 25 points (4G / 21A) in 32 games at Boston College this season, is expected to play in the AHL after the college season is over.
Poehling suffered an upper-body injury in Philadelphia on Sunday and is expected to miss an extended period of time. Mathieu Perreault will likely draw into the Canadiens lineup to replace Poehling on Tuesday.
Helleson was a fourth-round pick in 2019 and is coming off of a great season at Boston College, scoring four goals with 21 assists (25 points) in 32 games.
Mrazek allowed five goals on 31 shots in the Maple Leafs loss to the Sabres last Wednesday. Jack Campbell struggled again on Saturday, so the Maple Leafs will come back to Mrazek on Monday. In his last six appearances, Mrazek is 3-3-0 with an .873 SV%.
