Conner (heel) is inactive for Sunday's game against the Colts, Darren Urban of the Cardinals' official site reports.
Conner was held out of practice Tuesday through Thursday due to a heel issue, but the running back said late in the week that he was optimistic about being able to suit up this weekend, per Josh Weinfuss of ESPN.com. Earlier Saturday, Adam Schefter of ESPN reported that the Cards expected Conner to be available, but upon the release of inactives Schefter noted a team executive texted that he "didn't progress enough" to do so. With Conner sidelined, Chase Edmonds should take on a majority share of the backfield reps, while Eno Benjamin and Jonathan Ward will be on hand as reserves.