GLENDALE, AZ - SEPTEMBER 13: Running back Andre Ellington #38 of the Arizona Cardinals runs past Inside linebacker Ramon Humber #53 of the New Orleans Saints during the first half of the NFL game at the University of Phoenix Stadium on September 13, 2015 in Glendale, Arizona. (Photo by Christian Petersen/Getty Images)
The Cardinals running back depth could be tested heading into Week 2.
Andre Ellington was carted off the field after suffering a right knee injury. The team later announced he was questionable, but Ellington did not return to the game.
Chris Johnson replaced Ellington in the backfield and recorded 37 rushing yards, while rookie David Johnson nabbed a 55-yard touchdown reception that sealed the game.
Ellington finished with 69 rushing yards and a touchdown, plus one reception for seven yards.
(h/t Twitter)
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