Cardinals coach Bruce Arians said running back Andre Ellington's routine of sitting out Wednesday practices is hurting his production on Sundays, reports ESPN.com. "It's showing up too much on Sundays right now," Arians said.

"Then, obviously, he can't run well enough in the passing game for us to do some things. He saw a ghost on the screen pass out there, turned around and lost 4 yards when he should've had about 20. Just some of those things."

Ellington has nursed a foot injury all season and lately has battled a hip issue, too. He's yet to run for 100 yards in a game and is averaging 3.4 yards per carry this season.

Arians indicated that missing Wednesday practices has affected Ellington's conditioning and his ability to "see the game plan through the eyes of Cardinals coaches," the report said.

"He's gutting it up on Sundays, but he needs to perform better too," Arians said. "Right now, he's as healthy as he's been and we need more out of him."