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LSU quarterback Zach Mettenberger is the first player to make this list because of an injury.
At 6'5", 224 pounds, Mettenberger has the size NFL teams want when drafting a "prototypical" pocket passer.
On film, the LSU signal-caller can spray the football across the field thanks to his robust arm strength and ideal mechanics.
Dane Brugler of NFLDraftScout.com (h/t CBSSports.com) went into extensive detail about what makes Mettenberger's game so appealing:
Tall, strong frame and looks the part. Good downfield vision with his stature. Strong arm to plant and fire, possessing rocket arm strength and plus velocity to deliver frozen ropes. Makes throws to the opposite hash look easy and trusts his arm. Balanced with good weight distribution in his release. Stands tall in the pocket and stares down the gun barrel. Keeps his eyes elevated and downfield to deliver in the face of pressure. Quicker eyes and timing to work through his progressions and make the best read.
In a quarterback class that has been deemed weak by many draft pundits, including ESPN's Ron Jaworski (Insider subscription required), a strong-armed guy like Mettenberger, who's projected to be selected in Round 3, becomes a compelling option for teams.
However, no matter where he ends up landing in May, Mettenberger still needs to redshirt his rookie year if he wants to have a bright future in this league.
The LSU QB is coming off of an ACL injury he suffered at the end of his 2013 season.
The good news is, a torn ACL isn't always a career-ending injury like it was in the past.
Talking about some recent players who have recovered from the injury at an accelerated rate, Bleacher Report's own Dr. Dave Siebert wrote:
A very unscientific survey of recent injuries comes up with an average of about nine to 10 months.
Minnesota Vikings running back Adrian Peterson famously returned from a torn ACL in about nine months, and Washington Redskins quarterback Robert Griffin III only needed eight
Though he is set to throw for scouts at his pro day on April 9, Mettenberger would be best served learning the nuances of the position for a full season while letting his knee completely heal.
Anything less would be a disservice to the 22-year-old signal-caller.