He played college football for the Florida State Seminoles and was selected by the Cleveland Browns in the second round of the 1985 NFL draft.

Allen was Florida State's all-time leading rusher with 3,769 yards until Warrick Dunn broke it in 1996.

[2] Allen was selected by the Cleveland Browns in the second round, with the 35th overall pick, of the 1985 NFL draft.

[4] He played in seven games for the Browns in 1985, rushing eight times for 32 yards, before being placed on injured reserve on October 25, 1985.

He did not appear in any games for the Chiefs and was later placed on injured reserve and released.