Dallas Stars defenseman Miro Heiskanen will sit out Game 4 against the Colorado Avalanche as he continues to recover from knee surgery. Although he participated in practice and skated during morning sessions, he has not yet returned to full-contact workouts. Coach Pete DeBoer confirmed that Heiskanen is close to returning but will not be available for Saturday's crucial playoff game.

Additionally, forward Oskar Bäck's status remains uncertain as he's labeled a game-time decision after suffering an oblique injury during Game 3. If Bäck cannot play, Mavrik Bourque is set to replace him, having been previously scratched in earlier games of the series. The Stars face a significant challenge as they look to gain momentum in the playoff series against a formidable Avalanche team.