"Adam Burish went into the boards on Sunday night in Minnesota and injured his right knee," team physician Dr. Michael Terry said in a statement. "When a player like him leaves the ice, it is always concerning and unfortunately he suffered an ACL tear.
"He will undergo a reconstruction as soon as possible and we anticipate a complete recovery. His return will take approximately six months."
Burish is one of the Blackhawks' toughest players and has been a key player on penalty-killing units. He scored six goals and nine points in 66 regular-season games last season.