The New England Patriots are adding a Super Bowl champion to their defense. Shortly after free agency began, CBS Sports NFL insider Jonathan Jones reported that the Patriots are signing cornerback Carlton Davis to a three-year,

The Patriots made moves to bulk up their defense on Monday, reportedly signing linebacker Robert Spillane and cornerback Carlton Davis as NFL free agency kicked off.

Carlton Davis insisted he wasn't going to shortchange himself in free agency a second time. The Lions starting corner proved true to his word in the opening hours of the NFL's negotiating period. Davis agreed to terms with the New England Patriots on a lucrative 3-year contract that will pay the 28-year-old corner $34.