NFL-steroidsThe NFL Players Association has filed a suit against the league Thursday following the suspension of five players who allegedly breached NFL’s policy on anabolic steroids and related substances.

All five players tested positive for bumetanide, a loop diuretic considered to be a masking of steroids and other performance boosters. NFLPA argues that the league knew of the tainted over-the-counter supplement and withheld the information from the players.

The lawsuit was meant to acquire a temporary injunction against the suspension, allowing the five players to be eligible to rejoin their respective teams towards the end of the regular season.

The five players were Kevin Williams and Pat Williams of the Minnesota Vikings, and Charles Grant, Deuce McAllister and Will Smith of the New Orleans Saints.

A sixth player, Houston’s long snapper Bryan Pittman, was also suspended but his case involved another type of diuretic. A seventh player, Atlanta’s Grady Jackson has not been handed a suspension; NFL’s counsel Jeff Pash had requested for additional information on Jackson’s case.

The Williamses had already obtained a temporary restraining order blocking their four-game suspensions from Hennepin County District Judge Gary Larson. The two tackles joined their team’s practice Thursday.