ALLEN PARK -- Seven days into Lions’ training camp injuries are beginning to add up.

In fact Friday morning’s session was cut a little short due to the rash of injuries. Coach Jim Schwartz said he was planning to down-tempo the end of practice, but he was not planning on no helmets and he cut the reps short.

None of the injuries appear serious, although cornerback Aaron Berry was carted off the field after he appeared to injure his hamstring.

“This is NFL training camp, guys are starting to feel their groin, feel their hamstring and quads and calves and soft muscle tissue stuff. They practice hard, they’ve been out here quite a bit, part of being professional and part of this business is the ability to be available and the ability to stay healthy,’’ Schwartz said.

Sitting out again today was rookie cornerback Amari Spievey (muscle pull). Cornerback Jonathan Wade started practice, but didn’t finish it.

“You need to get them back on the field. Unlike DeAndre Levy and (Louis) Delmas and some of those other guys, Kevin Smith, Brandon Pettigrew that we took really slow, those guys need to prove what they can do. We really don’t know them as well as we know the other guys,’’ Schwartz said.

In other words the secondary is still pretty much wide open so they need guys to get healthy and show what they can do.

Defensive end Kyle Vanden Bosch was scheduled to have a session off but also had a little tightness so the timing was good. Defensive end Jared DeVries, who tweaked his leg injury on Wednesday, also was out.

Jason Hanson who underwent minor knee surgery on his non-kicking leg on Tuesday is confident he can be back for the start of the season.

(Follow me on Twitter @paulapasche.)