Ertz (concussion) has been ruled out for Thursday's contest at Detroit.
With only three days to recover from a concussion suffered Sunday versus the Buccaneers, Ertz was able to progress to a limited showing in Wednesday's practice, according to Zach Berman of the Philadelphia Inquirer. However, Ertz was unable to complete all phases of the league's protocol for head injuries. His next opportunity to suit up arrives on Dec. 6 in New England.