As Steelers rookies gathered this weekend for their first minicamp, the team announced several draft picks, including Roman Wilson, had signed their first contracts. Wilson, the former Michigan Wolverine star, was Pittsburgh’s first of their two third-round picks during last month’s NFL Draft. Like all the other rookie draft picks, he signed a four-year contract. In addition to Wilson, the Steelers also signed Payton Wilson, their second pick in the third round, and sixth-rounder Ryan Watts. Wilson is an inside linebacker who was a unanimous All-American at NC State. He also won the Butkus (to…