Veteran defensive lineman Levi Onwuzurike was placed on the reserve/physically unable to perform list on Thursday with an undisclosed injury. On Sunday, Lions head coach Dan Campbell announced that Onwuzurike recently underwent surgery to repair a torn ACL.

Last season, the Detroit Lions were dealing with so many injuries that we created an injury tracker to both help fans keep up with all of them and, to be honest, I needed it for myself too, so that I could keep up with them.

Dan Campbell is (unfortunately) already in mid-season form as far as the frequency of his injury updates. Today, on Day 3 of training camp, brought some more big revelations in Mekhi Wingo and Miles Frazier. But first, an update on two players who were injured yesterday....