Tkachuk and the Flames will not return to action until Dec. 27 against the Oilers at the earliest, per the NHL's statement Friday.
EDGE Analysis
Tkachuk is one of only a handful of players on the 23-man roster yet to enter the league's protocols, which has led to their significant shutdown. When these contests will be rescheduled remains to be seen but fantasy players will want to avoid the entire Calgary lineup for at least through the Christmas break.