Here's a look at the Lions' first practice report for Detroit's upcoming showdown against the Pittsburgh Steelers.

The Detroit Lions returned to the practice field on Thursday afternoon, ahead of the team's Week 16 home contest against the Pittsburgh Steelers. Those not spotted at the portion of practice open to the media included center Graham Glasgow and safety Kerby Joseph.

Detroit Lions center Graham Glasgow and safety Kerby Joseph were not seen Thursday during the media viewing period at the start of practice.

*The Lions conducted a walkthrough on Wednesday. Practice participation designations for that day are based on estimations.

The Lions still have a lot of question marks around who will be available for an all-important road game on Christmas Day.