Dach (knee) was placed on injured reserve Saturday, per CapFriendly.
Dach (lower body) is expected to be out of action long term, Eric Engels of Sportsnet reports Monday.
Dach sustained a lower-body injury during Saturday's game against Chicago and won't return to the contest.
Dach had two assists, three shots on goal and three hits over 21:22 of ice time in Wednesday's 6-5 shootout loss to the Maple Leafs.
Dach (upper body) will be ready to take part in training camp, Eric Engels of Sportsnet reports.
Dach (upper body) will be sidelined for at least one week.
Dach (upper body) won't play Tuesday against Philadelphia.
Dach logged two power-play points -- a goal and an assist -- and had three shots on net over 24:00 of ice time in Thursday's 4-2 loss to Boston.
Dach scored a goal on two shots in Tuesday's 3-2 win over the Lightning. He added one hit and one blocked shot over 20:44 of ice time.
Dach (lower body) will be back in the lineup versus Tampa Bay on Tuesday, Luc Gelinas of RDS.com reports.