The Indianapolis Colts have signed undrafted free agent tackle Demarco Cox, a former basketball player at Ole Miss and Georgia Tech.
Richardson was acquired by the Colts in a trade with the Cleveland Browns on September 18, 2013.
On Tuesday, running back Frank Gore signed with Indianapolis and on Wednesday free agent wide receiver Andre Johnson decided to join his former college teammate.
The Colts have agreed to a new contract with safety Mike Adams.
Indianapolis has agreed to a contract with free agent running back Frank Gore.
Nickelback Darius Butler and the Colts agreed to terms on a contract extension on Sunday night.
The Colts have agreed to a contract with longtime Eagles guard Todd Herremans, a move they hope will beef up their offensive line.
The Colts announced Friday morning that Reggie Wayne will not be back next season.
Wide receiver Reggie Wayne has been with the team for 14 seasons.
A 16-year NFL veteran, Hasselbeck originally signed with the Colts as a free agent two years ago.
Indianapolis had signed Jean Francois to a four-year, $22 million contract in 2013.
The Ohio State Highway Patrol stopped Ahmad Bradshaw for a traffic violation on Interstate 70 on Feb. 5 and a trooper found marijuana in the vehicle and on Bradshaw.