Blues' Allen leaves game with apparent injury after collision with teammate

St. Louis Blues goaltender Jake Allen exited Saturday's game against the Chicago Blackhawks with an apparent injury after a collision involving his own teammate.

Backup netminder Chad Johnson replaced Allen in the Blues' crease.

Allen owned a .876 save percentage and 3.93 goals-against average before allowing three goals on 19 shots Saturday.

Johnson has served as primarily a backup throughout his career, never starting more than 40 games in a season.