Nineteen of the 32 players selected in the first round of the 2012 NFL draft were early entrants, so one should expect that underclassmen will make up at least half the players selected in the first round in 2013.
That said, underclassmen are the most difficult players to project to the draft. Many redshirt sophomores and juniors will break out as top prospects in the upcoming college football season. But considering most have not had considerable starting experience, it is hard to project which ones those will be.
Could anyone have predicted at this time last year that Robert Griffin III would be the No. 2 overall pick in the 2012 draft?
Still, the window is certainly open for underclassmen to be major factors in how the first round plays out. Outside of a few top seniors such as USC quarterback Matt Barkley, Notre Dame linebacker Manti Te’o and Alabama guard Barrett Jones, few players can be considered solid first-round selections at this point.
Here are the 20 underclassmen who are most likely to end up as first-round picks should they declare for the 2013 NFL Draft.