Lane Johnson did nothing Saturday to keep his name out of the mix to be the San Diego Chargers’ selection with the No. 11 overall draft pick. As expected, the Oklahoma left tackle was blazing fast in the 40-yard dash at the NFL scouting combine. Johnson, a 6-foot-6, 303-pound former quarterback, ran a 4.72 40-yard dash. It was the second-fastest time for an offensive lineman Saturday behind a 4.71 posting by Terron Armstead of Arkansas-Pine Bluff. The previous combine record by an offensive lineman was 4.84.