The Carolina Panthers have signed former Pittsburgh Steelers cornerback Brandon Boykin to a one-year contract. Boykin is a nickel cornerback. The former fourth-round draft pick of the Philadelphia Eagles from Georgia intercepted six passes in 2013. Traded to the Pittsburgh Steelers last year, he had 25 tackles, one interception and one sack before leaving in free agency. Follow me on Twitter: @AaronWilson_NFL Aaron Wilson covers the Texans for The Houston Chronicle.