Steelers' Trenton Thompson: Seems to be progressing

Thompson (neck) was listed as a limited participant on the Steelers' practice estimate Tuesday, Brooke Pryor of ESPN.com reports.

Thompson missed Pittsburgh's last practice of last week ahead of Sunday's win at Seattle, so a limited practice would indicate he's moving in the right direction. It's just an estimation though, and the Steelers' official injury reports Thursday and Friday will give a better idea of whether he'll be available in Week 18.