Six players, including the heart of the Minnesota Vikings' stout defensive line, were suspended for four games without pay by the NFL on Tuesday for violating the league's anti-doping policy.
All six were punished for using a diuretic, which can serve as a masking agent for steroids.
The suspended players were running back Deuce McAllister and defensive linemen Charles Grant and Will Smith of New Orleans; defensive linemen Kevin and Pat Williams of Minnesota; and long snapper Bryan Pittman of Houston.
The punishment means all six will miss the end of the regular season, an especially harsh blow to Minnesota, which relies heavily on the Williamses in its run defense, which ranks second in the league.
Angelo Wright, the agent for Pat Williams, said he planned to file a motion in federal court in the next 24 hours, presumably to put off his client's suspension. Tom Condon, the agent for Kevin Williams, said he hadn't yet determined what course of action to take.
If a player's team makes the playoffs, the player will be eligible to return to the active roster on Dec. 29.
The suspension of Pat and Kevin Williams, who are not related, may prove to be the most critical.
The Vikings lead Chicago by a game in the NFC North with four games left, in large part because the Williamses are considered the NFL's best defensive tackle combination.
Last Sunday, they led a goal-line stand that kept Chicago from taking a 14-3 second-quarter lead in Minneapolis. On the first play after the Bears were stopped, the Vikings' Gus Frerotte threw a 99-yard touchdown pass to Bernard Berrian, giving Minnesota a 10-7 lead it never lost, a 14-point swing.
"In response to this afternoon's ruling, the Minnesota Vikings are very disappointed in the National Football League's suspension of Kevin and Pat Williams," the team said in a statement. "At the appropriate time, we will have further comment."