Free-agent running back Kevan Barlow visited the Steelers at their South Side headquarters yesterday. Barlow, who played for Pitt and Peabody High School, has played with the San Francisco 49ers and the New York Jets in six NFL seasons. His best season was 2003 with the 49ers, when he rushed for 1,024 yards on 201 carries, a 5.1-yard average.