Enemkpali (knee) was designated as waived/injured by the Bills on Monday, ESPN.com reports.
Enemkpali tore his right ACL in Buffalo's preseason opener versus the Colts. Now, the Bills have lost two key linebackers to torn ACLs, the other being rookie Reggie Ragland, and are still without their first-round pick, LB Shaq Lawson. If Enemkpali clears waivers, he'll likely be placed on the Bills' injured reserve list.