PITTSBURGH (AP) — The Pittsburgh Steelers are signing veteran running back/kickoff return specialist Cordarrelle Patterson to a two-year deal. The contract carries a total value of $6 million a source with knowledge of the agreement told The Associated Press. The person spoke to the AP on condition of anonymity because it had not been announced. The versatile 33-year-old Patterson spent the past three seasons with the Atlanta Falcons. A four-time All-Pro, Patterson gives the Steelers a veteran to help them adjust to the league’s new kickoff rules designed to produce more returns.