David Backes scores 4 goals, Brian Elliott stops 23 shots to help Blues beat Coyotes 6-0

St. Louis Blues' David Backes (42) scores a goal, one of three during the second period, as he sends the puck past Arizona Coyotes' Mike Smith, back right, as Coyotes' Oliver Ekman-Larsson (23), of Sweden, Brandon McMillan (22) and Blues' T.J. Oshie (74) all look on during an NHL hockey game Tuesday, Jan. 6, 2015, in Glendale, Ariz. (AP Photo/Ross D. Franklin) (The Associated Press)

Arizona Coyotes' Mike Smith, right, makes a save on a shot by St. Louis Blues' Jaden Schwartz (17) during the first period of an NHL hockey game Tuesday, Jan. 6, 2015, in Glendale, Ariz. (AP Photo/Ross D. Franklin) (The Associated Press)

GLENDALE, Ariz. – David Backes scored four goals to lead the St. Louis Blues to a 6-0 win over the Arizona Coyotes on Tuesday night.

Paul Stastny and Jayden Schwartz also scored for St. Louis and Brian Elliott stopped 23 shots. The Blues outshot the Coyotes 39-23 and won in Arizona for the sixth straight time with a 29-8 scoring in those games.

Backes notched his 10th, 11th, 12th and 13th goals of the season over a 17-minute span between the second and third periods. It was the second time Backes has scored four goals in a game and he became the second Blues player in two nights to score at least three goals, following T.J. Oshie's hat trick in St. Louis' 7-2 win at San Jose on Saturday.