The timetable likely shelves him for the rest of the regular season.
Anisimov was injured Tuesday when Montreal Canadiens forward Alexander Radulov fell on his leg as they battled for a puck in the corner. Anisimov stayed down for a while and needed to be helped to his feet and off the ice. He did not put weight on his left leg.
After the game, the 28-year-old was seen in a walking boot.
Losing Anisimov puts a major hole in the Blackhawks' most productive line and creates ripples throughout the lineup.
According the Chicago Sun-Times, rookie John Hayden might get a look on the Toews line, replacing Schmaltz. Hayden just completed his senior season at Yale and signed with Chicago this week.
Anisimov was having a career year. He had equaled his career best with 22 goals and surpassed his top point production with 45 --- with 13 games left to play.
The injury tempered the enthusiasm on a successful night Tuesday. The Hawks beat the Habs 4-2, and with the Wild losing to the Capitals, Chicago leapfrogged Minnesota for the top spot in the West.