Justin Rogers

The Detroit News

Latrobe, Pa. — The Detroit Lions may have lost another player to a long-term injury during the team's second joint practice with the Pittsburgh Steelers. Linebacker Jon Bostic had to be carted off the field after suffering an apparent leg injury early in the session.

After the practice, coach Jim Caldwell didn't have enough information to provide a specific update, but indicated Bostic could be sidelined for some time.

"It's not a couple day thing, that's for certain," Caldwell said.

Acquired in an offseason trade with the New England Patriots, the former second-round pick has split his time working with the first- and second-team defenses, playing weakside linebacker while DeAndre Levy remains on the non-football injury list.

On Tuesday, Detroit lost undrafted rookie cornerback Ian Wells to a season-ending, non-contact knee injury.

There was also some concern defensive end Ezekiel Ansah suffered an injury after he was lifted from practice early, but Caldwell indicated it was part of a maintenance plan for the Pro Bowler.

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"Couldn't finish practice or we took him out?" Caldwell responded to a question about Ansah's status. "We have certain guys we put a rep count on."

Speaking briefly after practice, Ansah said, "I'm good."

It wasn't a day of rest for the cornerback Darius Slay who sat out practice with an injury the day after struggling to defend Steelers All-Pro wide receiver Antonio Brown.

"He had a situation we wanted to calm down a little bit from an injury standpoint," Caldwell said.

Eric Ebron remained out of action with the leg injury he suffered Saturday. He declined interview requests after practice, but Caldwell noted he still hadn't ruled the tight end out for Friday's game against the Steelers.

In positive news, wide receiver TJ Jones returned to action. He had missed the past two practices after having to leave Saturday's mock game. He declined to elaborate on any specifics, including whether he suffered a concussion.

"It was good to get back running around, getting a feel back for playing on grass," Jones said. "Good to get all that sitting out of my legs."

jdrogers@detroitnews.com

Twitter: @justin_rogers

Steelers likely to sit out stars against Lions