INDIANAPOLIS -- The Indianapolis Colts have signed fourth-round draft pick Zach Banner and waived second-year center Austin Blythe.
While terms of Banner's deal were not immediately available, rookies typically sign for three years.
The 6-foot-9, 360-pound tackle was Southern California's 2015 offensive lineman of the year and was chosen No. 137 overall.
Blythe was Indy's seventh-round pick in 2016 and played in eight games last season. Indy replaced Blythe with free agent guard Blake Muir, who spent last season on two teams' practice squads.
The Colts also signed four undrafted rookies: cornerback Dante Blackmon, safety Tyson Graham, receiver Al-Damion Riles and tackle Andrew Wylie. To make room, they waived receiver Jerome Lane, cornerbacks Frankie Williams and Chris Lyles, and guard Christopher Muller.