The Toronto Sun's John Kryk reports that Buffalo edge player Khalil Mack ran an unofficial 4.45 second forty on one longtime NFL scout's watch.
"Khalil Mack just ran a 4.54 unofficial at UB pro day. Ran 4.65 official at NFL Combine (4.66 and 4.62 unofficials)," Kryk added, offering a second time to the mix. After a great Combine performance paired with a strong pro day, Mack should solidify his chances of going in the top 10. Rotoworld's Josh Norris considers Mack to be a top five talent. Mar. 4 - 10:44 am et
Source: John Kryk on Twitter