The Indianapolis Colts have signed veteran free agent tight end Sean McGrath and waived tight end Jean Sifrin. McGrath, 6-5, 247 pounds, has played in 18 games with nine start over his NFL career and has caught 26 passes for 302 yards and two touchdowns. McGrath spent the entire 2014 season on the Kansas City Chiefs reserve/did not report list prior to being reinstated and waived on April 15. In 2013, McGrath played in 16 games with the Chiefs and registered 26 catches for 302 yards and two touchdowns. Follow me on Twitter: @RavensInsider Aaron Wilson covers the Ravens for The Baltimore Sun