Chargers opened the 21-day practice window for OLB Khalil Mack (elbow).

Mack will practice today, per Chargers head coach Jim Harbaugh. The veteran pass rusher ranks third among Chargers defenders in pass-rush win rate (12.5 percent) while also grading out as the third-best player (69.0 PFF pass-rush grade). Unfortunately, OTs Joe Alt (ankle) and Trey Pipkins III (knee) will not practice today.