Cardinals make Peterson highest-paid cornerback

Peterson ranks third in the NFL with 12 interceptions since 2011. Kirby Lee-USA TODAY Sports

The Arizona Cardinals announced the signing of cornerback Patrick Peterson to a five-year contract extension through the 2020 season on Tuesday. Peterson himself announced via Twitter that the deal is for $70 million and includes $48 million guaranteed, making him the highest-paid cornerback in the NFL.

He is the first player from the 2011 NFL Draft class to agree to a contract extension. Peterson has made three Pro Bowls since being drafted fifth overall in 2011, and had two years left on his rookie contract, which was due to pay him $2.9 million this season and $10 million next year.

Peterson has yet to miss a game during his NFL career. Not only has he been a strong defensive presence for the Cardinals, but also an excellent kick returner, which started right away when he returned four punts for touchdowns during his rookie season.

The Cardinals were believed to be roughly $11 million under the salary cap before signing Peterson to the extension.