The Chargers activated linebacker Denzel Perryman to the 53-man roster, and waived linebacker Josh Keyes and tackle Tyler Marz, the club announced today. 
Perryman was assigned to the Reserve/Injured-Designated for Return list after undergoing ankle surgery following an injury in the team’s first preseason game. Coach Anthony Lynn expects the third-year linebacker, who has been practicing with the team since Week 7, to make his 2017 debut against the upstart Jaguars in Week 10.
The third-year linebacker will be a welcome addition to a Los Angeles defense that has allowed the second-most rushing yards (1,081) and fifth-most yards per attempt (4.6) through the first nine weeks of the season. Perryman amassed 71 tackles, two sacks and an interception in 12 games (11 starts) in 2016.