The Penguins picked up a pair of players within the first 10 minutes of free agency starting Saturday. A pair of sources told the Pittsburgh Post-Gazette that defenseman Matt Hunwick and goaltender Antti Niemi will sign free agent contracts to join the Penguins. Hunwick’s deal is for three years and carries an average annual value of $2.25 million. Niemi’s is for one-year with an AAV in the $700,000 range. Niemi, 33, spent the past two seasons with the Stars and before that played for the Sharks and Blackhawks. For his career, he has a 2.49 goals-against average and a .913 save percentage with 227 wins. Niemi will back up Matt Murray and is expected to make around 25 or so starts.