Cardinals' Wells, Seahawks' Lynch questionable

Arizona Cardinals running back Beanie Wells was added to the injury report Friday with a hamstring injury.

Wells was limited in Friday's practice but told reporters he expects to play in Sunday's opener in Glendale, Ariz., against the Seahawks. Second-year back Ryan Williams would start in Wells' place if he's unable to play.

Seattle has a running back question of its own with starter Marshawn Lynch questionable because of back spasms that bothered him most of the week. Rookie running back Robert Turbin took most of the first-team reps for the Seahawks.