That was the preliminary word from coach Ken Whisenhunt following the Cardinals' 28-20 preseason defeat at Green Bay on Friday night. Williams would miss the 2011 season if that were the case. He would then face a grueling rehabilitation.
St. Louis Rams running back Cadillac Williams has had torn patella injuries, one to each knee, while with the Tampa Bay Buccaneers. He returned the next season in each case and hasn't missed a game over the past two seasons.
This would be a costly injury for the Cardinals because their other primary back, Beanie Wells, remains unproven. Wells has also missed time with injuries during his two seasons in the NFL.
The Cardinals used a second-round draft choice on Williams this offseason. Whisenhunt said they had him rated as one of the 15 best players available. Williams did not disappoint during training camp, either. He showed an ability to change directions without sacrificing much speed. I thought he had a chance to supplant Wells in the starting lineup at some point during this season.
This injury could lead to more playing time for LaRod Stephens-Howling. The Cardinals have used Stephens-Howling increasingly over the past couple seasons, sometimes with three wide receivers and another running back.
Arizona has stocked up on tight ends this offseason, giving the team additional flexibility with its personnel groups. But just about every grouping includes at least one running back. Wells hasn't been consistent in pass protection and he missed a block against Green Bay.