The Indianapolis Colts promoted center Thomas Austin from the practice squad to the active roster and waived running back Shaun Draughn on Saturday.
Austin played seven NFL games with the Houston Texans (2011) and Carolina Panthers (2012). He was signed by the Colts as a free agent on Aug. 1 and assigned to the practice squad on Sept. 1.
Draughn was signed by the Colts as a free agent last Tuesday. In 20 NFL games with the Kansas City Chiefs (2011-12) and Baltimore Ravens (2013), he has 63 carries for 235 yards with two touchdowns.