Brown was also a member of the San Diego Chargers, Oakland Raiders, New Orleans Saints and St. Louis Rams.

Brown spent the first three weeks of the 1999 season on the San Diego Chargers practice squad.

On March 14, 2006, Brown signed a five-year, $12 million contract with the St. Louis Rams.

In 2006, he started all 14 games he played in, recording 66 tackles, one sack, three interceptions, and two forced fumbles.

He finished the season starting 11 of 13 games he played in recording 45 tackles, one sack, one interception, and a forced fumble.

Brown was signed by the Florida Tuskers of the United Football League on September 26, 2009.