Warren played forward at the Vanderbilt University from 1965 to 1968.

In it, Warren played the title role while also being of African American ethnicity.

Warren and Tuke played competently at half, but despite a strong display were unable to muster the team to victory.

Warren played nine consecutive games after his debut, but broke his leg in Round 13 and missed the rest of the season.

From 1983 to 1988, Warren played basketball at Creighton.

Warren played college football for the University of Nebraska.

In 2002, Warren practiced during mini-camp and played most of 2002 season.

Following this, Warren played for Nottinghamshire in the 2003-2006 seasons.

Warren, a 12-year veteran, sprained his right arch against Atlanta on Oct. 24 and has not played in four of the last five games.

Warren played in all 16 games in the 2003 season, starting four times and recording 33 tackles and one sack.