Eagles linebacker Travis Long has torn the anterior cruciate ligament in his left knee for the second straight year.
Long was injured in practice Monday on the second day of training camp. The second-year pro missed last season after injuring his ACL in the final preseason game.
Long tore his right ACL during his senior year at Washington State in 2012. The Eagles signed him as a rookie free agent in 2013 and he spent his first season on the practice squad.