Multiple reports had Fleener running in the mid-4.4s in the forty. ESPN’s Todd McShay had Fleener at 4.45, and so did CBS’ Bruce Feldman.
For comparison, Patriots tight end Rob Gronkowski ran 4.65 with the wind and 4.73 against the wind at Arizona’s 2010 Pro Day. Gronkowski is the same height as Fleener, and 11 pounds heavier. But Fleener is much faster in a straight line.
Time to adjust your mock drafts :P