KANSAS CITY, Mo. (AP) - The Kansas City Chiefs have agreed to terms with cornerback Sean Smith on a three-year deal to help shore up the secondary.

Smith has spent the past four seasons with the Miami Dolphins, starting every game each of the past two years. He has 177 tackles and five interceptions in his career.

The Chiefs have been bold players in free agency under new general manager John Dorsey and coach Andy Reid, revamping their offense by trading for quarterback Alex Smith and signing wide receiver Donnie Avery, tight end Anthony Fasano and backup quarterback Alex Smith.

They've also signed defensive tackle Mike DeVito and veteran cornerback Dunta Robinson, who is expected to provide depth. But the addition of Smith solidifies the cornerback spot opposite Brandon Flowers.