Ertz (hamstring) is listed as limited on Tuesday's practice estimate, Josh Weinfuss of ESPN.com reports.
In the first game with DeAndre Hopkins (knee) officially out for the rest of the regular season, Ertz earned a season-high 11 targets this past Sunday in Detroit, which he turned into six catches for 74 yards. Ertz also dealt with the hamstring issue prior to that contest and proceeded to suit up, but his activity still will need to be monitored to make sure he's available Saturday versus the Colts.