Johnston (lower body) was put on injured reserve Sunday and is considered day-to-day.
Holl was loaned to AHL Hershey on Sunday.
Dubois (illness) won't play in Saturday's game against the Devils, Sammi Silber of The Hockey News reports.
Head coach Spencer Carbery said Friday that Roy (lower body) is questionable for Saturday's game against the Devils, Sammi Silber of The Hockey News reports.
Head coach Spencer Carbery said Friday that Sourdif (illness) is considered day-to-day, Sammi Silber of The Hockey News reports.
Sourdif didn't participate in Friday's practice session due to an illness, Tom Gulitti of NHL.com reports.
Hofer is slated to start on the road against Minnesota on Thursday, per Dylan Loucks of The Hockey News.
Buchnevich returned to St. Louis ahead of the birth of his child, the team announced Thursday.
Fowler posted an assist and two PIM in Tuesday's 7-2 win over the Senators.