Running back Chris Johnson, who led the NFL in rushing with the Tennessee Titans in 2009, earning the nickname CJ2K, announced his retirement from the NFL on Monday.
Johnson, 33, hasn't played in the league since being released by the Arizona Cardinals in September 2017.
Johnson starred for the Titans the first six seasons of his career, surpassing 1,000 yards rushing each season. He was selected to the Pro Bowl in each of his first three seasons after the Titans selected him 24th overall in the 2008 draft.