Ellington is flying to Philadelphia to have surgery. Darren Urban of the Cardinals' website said running back Michael Bush could be re-signed in a corresponding move. Bush was released by the Cardinals on Friday when linebacker Matt Shaughnessy was activated.
In 12 games this season, Ellington rushed for 660 yards and three touchdowns on 201 carries. He also caught 46 passes for 395 yards and two touchdowns. Ellington has also dealt with hip and foot injuries this season.
With Ellington ruled out for Sunday's game vs. the Kansas City Chiefs, Kerwynn Williams rushed 19 times for 100 yards in a 17-14 Cardinals win. Arizona called up Williams from the practice squad on Friday. The Cardinals also have Stepfan Taylor, who entered Sunday as the team's second-leading rusher with 25 carries for 83 yards and one touchdown. Taylor rushed six times for 19 yards on Sunday.
Sunday's win improved the Cardinals' record to 10-3, maintaining their one-game lead over the Seattle Seahawks in the NFC West. This is Arizona's second 10-win season in a row. Before 2013, the team hadn't accomplished that feat since 2009.
- Mike Fiammetta