UNIVERSITY PARK, Pa. - The stakes inside the Lion's Den are simple.
The offense has four downs to score.
The defense has four downs to get a stop.
Head coach James Franklin calls four names on offense - three on the line and one in the backfield - and calls four names on defense - three on the line and one safety.
The whistle blows and the two sides go to battle.
Head inside the Lion's Den at training camp.