In recent years, the National Football League’s annual rookie selection has gone from being just another league formality on the calendar -- created to disperse young talent entering the league fairly -- to an absolute bonanza. From its (sort of) humble beginnings being held as a private meeting at the Philadelphia Ritz-Carlton Hotel to New York’s Radio City Music Hall and beyond, the NFL Draft has turned into a theatrical event of epic proportions.

Only one time a year, casual football fans get a chance to see the evaluative process of the NFL play out in a well-defined arena. They get to see what teams do to value young talent, and they get to put round grades on these players to define who should be good when coming into the league. This is the place where dreams come true.

Yet, those dreams are put on hold for those players not among the 250 or so drafted, when their phones (hopefully) start ringing off the hook and they sign as undrafted free agents (UDFA’s). It’s not as if all of these players are bottom-of-the-barrel roster fillers, either. Some major NFL contributors have gone undrafted: C.J. Anderson, Victor Cruz, Cameron Wake, and Arian Foster, to name a few.

With more than 500 players signed this way to compete for a roster spot in training camp, which undrafted prospects could be the next NFL contributors and fantasy sleepers?