Brooks was signed as an undrafted free agent by the New Orleans Saints after the 2000 NFL draft on April 18. He was waived on August 22.[1]
Brooks was selected by the Scottish Claymores in the third round (14th overall) of the 2001 NFL Europe League Free agent Draft.[2] He was named the starter at outside linebacker, posting 42 tackles (second on the team), 1.5 sacks and 3 passes defensed.
On July 10, 2001, Brooks was signed by the Dallas Cowboys after playing in NFL Europe. As a rookie, he played all three linebacker positions, registered 20 special teams tackles (second on the team) and got a chance to start in the ninth game of the season in place of an injured Dexter Coakley.
On August 29, 2002, he suffered a fractured left fibula in the preseason finale against the Jacksonville Jaguars and was placed on the injured reserve list on September 1.[3]
He was released on August 31, 2003, and was later re-signed on November 21, to provide depth after Al Singleton was injured.[4] He was declared inactive in the final 6 games. He was released on August 23, 2004.[5]
On February 15, 2005, he was signed as a free agent by the Cleveland Browns. He was allocated to the Berlin Thunder of the NFL Europe League and helped the team reach World Bowl XIII. He was cut by the Browns on September 3.
On February 21, 2006, he was signed by the St. Louis Rams as a free agent.[6] At the start of the regular season, he was limited with toe and leg injuries. He was released on October 12 and re-signed on November 28.[7] He was declared inactive for most of the games. He was released on August 31, 2007.