A day after the Indianapolis Colts placed running back Ahmad Bradshaw on injured reserve, the team announced the signing of running back Daniel "Boom" Herron and free agent linebacker Andy Studebaker.
Herron was on the Cincinnati Bengals' practice squad. A sixth-round draft pick by the Bengals in 2012, Herron has played in three career games. Last year, the former Ohio State player had a blocked punt, four special teams tackles and 5 yards on four rushing attempts.
Studebaker was added to the Colts' 53-man roster. In 70 career games with the Kansas City Chiefs, Studebaker totaled 51 tackles, five passes defenses, 2 1/2 sacks, two interceptions, two fumble recoveries and one forced fumble. He was released by the Chiefs on April 1.
Bradshaw suffered a neck injury in the Colts' Sept. 22 victory over the San Francisco 49ers and is expected to undergo surgery. He signed a one-year contract with the Colts in June. While playing for the New York Giants last year, Bradshaw also dealt with a neck injury.
Trent Richardson, acquired two weeks ago from the Cleveland Browns, and backup Donald Brown will be the primary ball carriers going forward for the Colts.