Antoine Roussel capped Dallas’ three-goal third period and the Stars rallied for a 3-2 win over the Pittsburgh Penguins on Tuesday night.
The loss dropped second-place Pittsburgh seven points behind Eastern Conference and Metropolitan Division leader Washington.
Dallas entered the game nine points behind the second wild card in the West and in a selling mode that had sent three veteran players to contenders in trades.
Pittsburgh led 2-0 on goals by Evgeni Malkin in the first period and Jake Guentzel in the second.
Brett Ritchie scored the Stars’ first goal at 3:40 of the third.