Byron Murphy of Washington, generally considered to be the #2 CB this year with at least some top ten potential clocks a 4.55 40 which is right on the back edge of the acceptable range for most teams. It will be interesting to see if that impacts his final grade, but its hard to see it moving him up. Meanwhile, Trayvon Mullen of Clemson clocks a solid sneaky quick 4.46 which should keep him in the early to mid second day mix.