Running back Beanie Wells missed part of practice Thursday because of a hamstring injury apparently suffered during the workout.
The seriousness of the injury is unknown. Wells was healthy Wednesday, but was listed on the report Thursday, suggesting the injury happened in practice.
Media access to coaches and players typically ends before the Cardinals issue their injury report. That was the case Thursday, so no one was available for comment.
If Wells can't play, it would be a serious blow to the Cardinals, who play their first NFC West game in Seattle on Sunday. A starter, Wells is eighth in the NFL in rushing with 183 yards in two games.
Chester Taylor, who has played one game with the Cardinals, is the backup, and either LaRod Stephens-Howling or Alfonso Smith would be next in line.
Stephens-Howling missed last week's game with an injured right hand and has worn a cast in practice this week.
Smith appeared in one game last year as a rookie and has never had a rushing attempt in the NFL.
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