Defensive back Jason Allen signed a six-year contract with the Dolphins on Tuesday, ending a 10-day contract impasse between the team and its first-round pick. Allen, who was selected 16th overall, and the Dolphins agreed late Monday to the deal that reportedly includes up to $9 million in guaranteed money. He was on the field with the team Tuesday morning for the first of the day's two scheduled workouts. "It's been a big relief for to be back here, come back home so to speak," Allen said after the practice.