The Chicago Blackhawks agreed to terms on a two-year contract with forward Drew LeBlanc and on one-year contracts with defensemen Theo Peckham and Michael Kostka, the team announced.
LeBlanc, 24, made his NHL debut with Chicago in 2012-13, playing in two regular-season games after being signed by the club on April 12.
He was the 2013 Hobey Baker Memorial Award winner while at St. Cloud State.
Peckham, 25, split the 2012-13 season between the Edmonton Oilers and AHL's Oklahoma City Barons. He played four games for Edmonton this past season and did not score.
Kostka, 27, split the 2012-13 season between the Toronto Maple Leafs and American Hockey League's Toronto Marlies. He had eight assists and 27 penalty minutes in 35 regular-season games with the Maple Leafs.