If you haven't seen it yet, check out the video of Arizona Cardinals running back ROBERT GILL on a treadmill . . . hitting 25 MILES AN HOUR. It's only for a few seconds, but it's incredible.
(Search for "Robert Gill Arizona Cardinals 25MPH Treadmill." In case you're wondering, Usain Bolt holds the world record of 27.79 miles an hour. WARNING: It sounds like there might be some profanity near the end.)