Chargers add linebacker D.J. Smith

The Chargers announced the signing of former Packers linebacker D.J. Smith Thursday, one day after Green Bay waived him with a “failed physical” designation. The 24-year-old Smith suffered a torn anterior cruciate ligament in his knee in October. He started the first six games for the Packers at middle linebacker before the season-ending injury. Smith has notched 82 tackles in 22…