Aug. 13 (UPI) -- The Buffalo Bills agreed to a four-year, $48 million contract extension with James Cook , the Pro Bowl running back confirmed Wednesday on social media. The pact includes $30 million guaranteed, the most paid to a running back in the last five years. Cook, 25, was entering the final year of his rookie contract. The fourth-year running back totaled a career-high 1,567 yards from scrimmage and six touchdowns over 17 games in 2023. He totaled 1,267 yards from scrimmage and scored