There is a big reason why Peyton Manning doesn't run that much anymore.
The Denver Broncos quarterback has never been the quickest at any point during his career - he ran a 4.80 40-yard dash time at his combine - and at 39-years-old there's no way that number is under five seconds anymore, even under six might be pushing it.
That is why it came as such a shock yesterday when Manning turned on the jets for an amazing first down run.
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During the third quarter of Sunday's AFC Championship Game against the New England Patriots, Peyton looked like he still had some life in those legs as he scrambled for an excellent 12 yards on third-and-10.
You can catch a video of it below. Check out the wheels on Manning - that is absolutely a sentence no one has said before.
You're not the only one who is shocked by that surprising display of athleticism from the veteran, his own teammates were as well!
Amazingly, a camera caught the reactions of Malik Jackson and Vance Walker to Manning's run while they were sat on the sidelines. It is exactly what you would expect.
Peyton will be brave to try this in the Super Bowl against the Panthers, with Thomas Davis and Luke Keuchly only too ready to try and punish something like this happening again.