Tom Pellissero has the goods:
Adolpho Birch, the league’s senior vice president of labor policy and league affairs, wrote in a strongly worded letter to NFL counsel Heather McPhee – obtained Friday by USA TODAY Sports – that Green Bay Packers linebackers' Julius Peppers and Clay Matthews and Pittsburgh Steelers linebacker James Harrison all will be scheduled for interviews the day camps open. The Packers are scheduled to hold their first practice on July 26 and the Steelers on July 29.
Mike Neal, a former Packers linebacker who’s currently a free agent, will be interviewed on or before July 22, the letter said.