ALLEN PARK — In last two years the Lions have not been able to keep a healthy secondary. It’s been a huge issue.

They’re off on the wrong foot now with CB Alphonso Smith, who would have been competing for a starting job, out with a broken left foot. Smith broke it three weeks ago while working out. Coach Jim Schwartz said they’ll take it slow with him, he’ll start on PUP.

Smith watched Friday’s first practice of training camp as did left tackle Jeff Backus who has a torn pectoral muscle.

Backus, who has played 160 straight games, would not give a timeline for coming back. But on Thursday Schwartz said he expected he’d be ready for the regular season.

LB Zack Follett, who missed the final 11 games last year with a spinal injury, is back and said he’s feeling fine.

K Jason Hanson, who missed the final eight games last year with a knee injury, said he’s healthy and was sharp on his field-goal attempts on Friday.

(Follow me on Twitter @PaulaPasche.)