More than two dozen rookies will hit the field the next two days when the Green Bay Packers hold a mini camp for first year players. All ten draft choices will be on hand — including their top choice, corner Kevin King, and outside linebacker Vince Biegel from the Wisconsin Badgers. Both players are expected to contribute immediately this season. Coach Mike McCarthy will also get a look at three running backs the Packers drafted in the final four rounds of the draft last Saturday — Jamaal Williams, Aaron Jones, and Devante Mays.