The Minnesota Vikings' are preparing for this Sunday's away game against the Arizona Cardinals, but whether the "Williams Wall" will be allowed to play is still unclear.
Kevin Williams and Pat Williams were temporarily cleared for last weekend's game against the Lions. But, the two defensive tackles are on thin ice as a federal judge decides whether or not to uphold their suspensions for violating the NFL's anti-doping policy.
At issue is whether the two players -- along with three others from other NFL teams -- were trying to mask their use of steroids by taking a diuretic banned by the league. The legal issue is complicated, but the medical issue is more straightforward.
Our regular medical analyst, Dr. Jon Hallberg regularly deals with professional athletes as a member of the medical staff of the Minnesota Twins and he says he's familiar with the drug being debated about.