Hall of Famer Warren Moon had a warning for Johnny Manziel ahead of the quarterback's impending transition to the pros.
If he isn't careful he could turn into the next Tim Tebow.
Moon, who spent sixteen years as a play caller in the NFL, was speaking to CBS Houston about Manziel, and wasn't exactly impressed with the potential first pick at present:
"You're talking about taking a guy number one overall in the draft and he's 5'11...
"You are talking about a small guy that's not very fast in an NFL that's big, strong and fast," said Moon.
And the nine-time Pro Bowler worried that Manziel could struggle as he attempts to transfer his game to the pros, highlighting a need for improved pocket passing over a reliance on his running game:
"All the running around and creating plays is great, but when it boils down to it, you have to be able to sit in the pocket and make throws," explained Moon.
But surely a Heisman trophy winning quarterback has a good chance of future career success?
Well Tim Tebow won the coveted Award in 2007 after his exploits with Florida, and, after somewhat spectacularly failing to live up to his pre-draft billing in the NFL, is currently out of the game.
"As a college quarterback, he was one of the greatest to ever play, but so was Tim Tebow.
"He had a tough time making that transition because he was the same style quarterback."
Johnny Manziel will be hoping he can prove his doubters wrong and make a big impact when he finally arrives in the NFL this May.
The comparison to Tebow might be motivation enough to make sure he lives up to the hype!
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