PHOENIX— The Arizona Cardinals have released running back Beanie Wells after four injury-plagued seasons.

A first-round pick in 2009, Wells showed flashes of the brilliance he had at Ohio State, but has only played one full season — his rookie year.

Wells eclipsed 1,000 yards and scored 10 touchdowns in 2011, but was limited to eight games last season due to a turf toe injury. Last season, he ran for 234 yards and eight touchdowns as part of what was the worst offense in the NFL. The move leaves the team thin at running back, with even more injury-plagued Ryan Williams the main returner.

Williams missed all of his rookie 2011 season and most of last season with injuries.