'During his last season at Florida State, Darby was targeted once every 10.1 snaps, the fewest of any cornerback in the 2015 NFL Draft. He was also the fastest cornerback at the NFL Scouting Combine with a 4.38-second 40-yard dash. The high-school track star has been clocked at 6.28 seconds in the 55-meter dash and 21.05 seconds in the 200-meter dash.'