"While disappointed to hear the news regarding Aaron today, we support and respect the league's decision," the Niners said in statement. "We are confident that he will learn from this matter and that he understands what is expected of him moving forward."
Lynch, entering his third season, was slated to start at outside linebacker. His absence is a blow to the 49ers' pass rush. Lynch, 23, compiled 12.5 sacks in his first two seasons with 16 starts.