Peyton is “coming along,” but it’s unclear when he’ll return

The preseason launches in two days, but Colts quarterback Peyton Manning has yet to practice, after offseason neck surgery.  Coach Jim Caldwell addressed the situation on Tuesday. “Doing well, coming along,” Caldwell said of Manning, in comments distributed by the team.  “He’s working extremely hard at it.  Doing all the little things that it requires…