Hartson was signed by the Chicago Bears as an undrafted free agent on August 10, 2013 and released by the team on August 30.[1][2] He re-signed with the Bears on December 30, 2013, and was released on August 31, 2014.[3][4]
Kansas City Chiefs
Hartson signed with the Kansas City Chiefs on January 20, 2015.[5] He was released by the Chiefs on April 16, 2015.[6]
Pittsburgh Steelers
Hartson was acquired from waivers by the Pittsburgh Steelers on April 17, 2015 and released by the team on May 9.[7][8]
Tampa Bay Buccaneers
Hartson signed with the Tampa Bay Buccaneers on August 27, 2015.[9] He was released by the Buccaneers on August 30, 2015.[10]
Dallas Cowboys
On March 31, 2016 Hartson signed with the Dallas Cowboys.[11] He was released by the team on May 16, 2016.[12]