Ertz (calf) is participating in Wednesday's practice, Josh Weinfuss of ESPN.com reports.
Ertz is considered day-to-day due to a calf injury that's lingered over the last month, so it's encouraging to see him handling some reps to begin the week of practice. The Cardinals will release their first injury report of the season later Wednesday, when more light will be shed on the veteran tight end's status. It's possible that Ertz could suit up for Sunday's regular-season opener versus the Chiefs even if he's limited in practice leading up to the contest.