The Steelers signed free agent wide receiver Shaun McDonald and punter Dirk Johnson on Thursday and released long snapper Jared Retkofsky.
McDonald is was originally drafted by the St. Louis Rams in the fourth round of the 2003 NFL Draft out of Arizona State. McDonald spent four years with the Rams before signing with the Detroit Lions during the 2007 off season. He led the Lions with 79 catches, 943 yards and six touchdowns that season.
Johnson is going into his eigth season as a punter and will provide another punting leg for training camp.
Retkofsky was signed last season when veteran long snapper Greg Warren tore his ACL.