"Dude, you have to watch this video..."
We know, bro. We heard about (insert video here), and we'll get to it as soon as we're done watching this other video we "have to watch."
Content goes viral by the minute on this nonstop merry-go-round we call the Internet, and weeding out the awesome from the lame is an important skill if you ever hope to have any free time whatsoever. In this spirit, I've gone ahead and compiled the 20 best viral sports videos from 2013.
These are some of the best of the sports videos that exploded across the Internet over the past year, along with virulence ratings depicting the swiftness with which they spread from human to human.
Note: There are no viral commercials in this slideshow. That's a whole other beast.