A federal judge has set a trial date of June 15 for Minnesota Vikings defensive tackles Kevin Williams and Pat Williams, who tested positive for a banned substance last season. Both players are asking for monetary damages in addition to having a four-game suspension from the NFL overturned. The NFL players' union has said that the league didn't properly inform the players that a supplement called StarCaps contained the banned diuretic bumetanide. Bumetanide is often used as a masking agent for the detection of steroids. Both players were suspended late last season but got an injunction in the middle of December that allowed them to play in the playoffs. The suspensions would begin next season if they are upheld at the trial.