Source: Colts add corner Townsend

Free-agent cornerback Deshea Townsend agreed to a contract with the Indianapolis Colts on Sunday, a league source told ESPN NFL Insider Adam Schefter.

Townsend, 34, played 12 seasons with the Pittsburgh Steelers after being drafted in the fourth round of the 1998 draft.

The 5-foot-10 Townsend has 21 career interceptions in 183 games.

He said earlier this month that he was surprised when the Steelers didn't re-sign him.

"I did kind of expect to be back, just to add some depth at the position," he said, according to the Pittsburgh Tribune-Review. "They know there's a player out there they don't really have to teach the system, that can come in and play."