The Arizona Cardinals are extending one of their key members along the defensive line. The team announced Friday that it signed defensive tackle Corey Peters to a three-year extension through the 2020 season. The 29-year-old Peters was in the final year of a three-year deal signed in 2015. After missing his first season in Arizona with a torn Achilles, the nose tackle has tallied 38 total tackles and one sack in 24 games played over the past two seasons.