Blackhawks general manager Dale Tallon said Thursday that Toews will miss the next four weeks.
Toews was injured Tuesday in a loss at Los Angeles. At the time, the Blackhawks feared he would need surgery. An MRI said otherwise.
After Tuesday's game, coach Denis Savard told The Chicago Tribune that he believed Toews suffered a second degree strain to his MCL and said he could be out "two to four weeks."
Toews is the top rookie scorer in the NHL with 15 goals. He has 17 assists as well.