JACKSONVILLE, Fla. — The Jacksonville Jaguars signed free agent cornerback Drayton Florence today, giving them a proven starter to bolster the secondary.

The Jaguars chose not to re-sign Terry Cousin, the nickel back the last three years, and safety Sammy Knight. Both 11-year veterans turn 33 before next season.

Florence could fill Cousin's role or replace cornerback Brian Williams, who would then move to safety.

Florence spent the last five seasons with San Diego, where he played 74 games and started 43 of them. Last season, Florence finished with a career-high 66 tackles, and two interceptions, 10 passes defended and one fumble recovery.

"This is a move that will significantly strengthen our secondary," Jaguars coach Jack Del Rio said. "Drayton is entering the prime of his career and he's a real good fit for us and our defense."

Florence, a second-round draft pick in 2003 who grew up in nearby Ocala, started the first 10 games last season before being replaced by All-Pro cornerback Antonio Cromartie.

Florence has nine career interceptions and 47 passes defended.