Chicago Blackhawks defenseman Michael Kostka will miss four to six weeks due to an undisclosed lower-body injury, the team announced on Wednesday.
Kostka's injury occurred during practice on Tuesday. He will not require surgery.
Kostka had one goal and a plus-1 rating in two games this season. He had been a healthy scratch for six of the Blackhawks' first eight games. He scored his first career NHL goal against the Toronto Maple Leafs on Saturday.
Kostka signed a one-year deal with the Blackhawks in July and earned a roster spot during training camp. He played in the Maple Leafs organization last season.