49ers linebacker Aaron Lynch has been suspended without pay for the first four games of the 2016 regular season for violating the NFL Policy and Program for Substances of Abuse.
Lynch will be eligible to return to the 49ers active roster on Monday, October 3 following the team's October 2 game against the Dallas Cowboys.
Lynch is eligible to participate in all offseason and preseason practices and games.
Statement from 49ers General Manager Trent Baalke:
"While disappointed to hear the news regarding Aaron today, we support and respect the league's decision. We are confident that he will learn from this matter and that he understands what is expected of him moving forward."