Robertson then took a cross-slot pass from John Klingberg in the right circle and appeared to shoot at another open net, but Wedgewood was able to scramble across the crease and make the save with 2:40 remaining.
"I was disappointed. We missed too many scoring opportunities in the third period. We could have won that game," Bowness said. "Missed an open net, we had some Grade As. We just didn't capitalize."
Keller scored his 20th of the season into an empty net at 19:25 of the third for the 3-1 final.
"It was day and night (compared to loss on Saturday)," Arizona coach Andre Tourigny said. "Our focus, our attention to details, our calm during this game was really good. I'm really happy about the way the guys responded, the way they prepared, and the way they were focused."
NOTES: The Stars were 12-1-0 against the Coyotes since the start of the 2015-16 season. … Dallas has scored two even-strength goals in its past four games. … Keller has scored 14 points (six goals, eight assists) in his past 11 games. … Forward Nick Ritchie, who was acquired by the Coyotes in a trade with the Toronto Maple Leafs on Saturday, has not yet arrived in Arizona. … Schmaltz has scored four goals in his past four games. … Coyotes forward Andrew Ladd sustained a lower-body injury during a collision with Stars forward Luke Glendening early in the first period and didn't return. Tourigny didn't have an update after the game.