Updated

The St. Louis Rams brought back Will Witherspoon to add veteran depth at linebacker.

He's preparing to start — at least the first four games.

The Rams' oldest player turned 33 Monday.

Witherspoon is set to begin his 12th season in the league.

Witherspoon got the starting job when Jo-Lonn Dunbar received a four-game suspension to start the season. Dunbar, who had the second-most tackles for the Rams last season, violated the league's policy for performance-enhancing drugs.

Dunbar can practice and play in the preseason but once the regular season starts, he will not take part in anything team related until after the Rams' fourth game, which is a home game against the San Francisco 49ers on Sept. 26.