With the 2013 NFL Scouting Combine getting underway on Feb. 20, there are many top prospects that can do themselves more harm than good.
In a sense, the combine is the true beginning of the 2013 NFL season.
In reality, Feb. 20 is the birth of many NFL careers.
Making a good first impression is key, but for every prospect that bursts onto the scene, there's another that fizzles fast and fades out from the spotlight.
This is not to say that these top prospects will perform poorly at the combine, but their futures lie in the balance. Bringing anything less than their A-game, and their stock will inevitably stumble.
As the combine nears, let's pinpoint which top prospects have the most to lose.