The Detroit Lions training camp is officially underway. Head coach Dan Campbell provided an injury update on Giovanni Manu that puts his Lions tenure in jeopardy. Giovanni Manu's extended absence will lead to his eventual Lions exitAhead of Thursday's practice, Campbell revealed that Manu had an undisclosed injury over the summer, which popped up again on Day 1 of training camp. Even if we assume that Manu can return in the optimistic range of Campbell's timeline, this puts his return at the end of October. Manu was supposed to get second-team reps at left tackle in training camp.