Maybe it's wrong to say that this is the worst onside kick ever, as it appears to be either Peewee or middle schooler playing here. That said... this was a bad kick.
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First off, the kick ends up spinning on the ground and goes backwards. Then, a player on the returning team — realizing that no one on the kicking team was going to grab it — just picks the ball up and jogs it into the end zone without much of a problem.
Yeah, this kick was probably about as bad as it can get. The bright side? It's only up from here, right?
[h/t MaxPreps]
