WOW!
I don't know that I've seen a player in the NFL who possesses that kind of jitterbug quickness and change of direction ability since Barry Sanders ...
Barry Sanders Highlights
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Jakeem Grant Highlights
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Though this guy has incredible speed and quickness, the Seahawks already have a similar type player in Tyler Lockett. So, I'm personally thinking that Seattle (if they're looking to draft another WR) would be looking for a player who has size, speed, and leaping ability -- someone who can be a match-up problem and get opposing DB's to back off and open up things for the rest of Seattle's receivers.
OTOH, Pete it's well known that Pete Carroll looks for guys who have special traits that "tilt the field" and set them apart from everyone else. They could I suppose find room for a player like this -- I just don't know where he'd play unless they'd possibly want to occasionally line him up in the backfield as a RB. That would sure make things interesting.
He's small, but his speed and quickness would make him a heck of a weapon for someone. I dunno. He's an interesting name to keep an eye on for sure.