Marcell Dareus has been suspended for the Bills' season opener for violating the NFL Policy and Program for Substances of Abuse, wivb.com reports.

Dareus has been suspended for the Bills' season opener for violating the NFL Policy and Program for Substances of Abuse, wivb.com reports.

Analysis:

While Dareus -- who recorded 49 tackles and 10 sacks in 15 games last season -- can participate in the team's offseason program and preseason action, the Pro Bowler won't be eligible to suit up for Week 1, putting him on track to make his regular season debut on Sept. 20 against the Patriots.