Oregon quarterback Marcus Mariota was the fastest quarterback on the field Saturday. Mariota, the 2014 Heisman Trophy winner, was clocked at 4.52 seconds in his first run and 4.56 in his second at the NFL's annual scouting combine. The 4.52 was the fastest of the quarterbacks. The fastest offensive lineman Friday was 307-pound Ali Marpet, a Division III player who ran 4.98. More...