Colts head coach Shane Steichen said that Kelly (calf) won't practice Wednesday, Kevin Bowen of 107.5 The Fan Indianapolis reports.
Kelly departed Sunday's win over the Titans with the calf injury, so his absence to begin Week 7 prep isn't much of a surprise. If Kelly isn't cleared to play this weekend against the Dolphins, rookie Tanor Bortolini will likely step in as Indianapolis' starting center.