The deal, announced by the AHL team, marks Kostopoulos' third stint with the franchise. He was drafted by the Penguins in the seventh round (No. 204) in 1999 and made his NHL debut with Pittsburgh in 2001-02. He returned to the organization last season when he signed a one-year contract but never suited up for the Penguins after getting claimed by New Jersey Devils while on waivers.
He had one goal and 18 penalty minutes in 15 games with New Jersey.
Kostopoulos, 34, has played with the Los Angeles Kings, Montreal Canadiens, Carolina Hurricanes and Calgary Flames. He has played in 630 NHL games, scoring 61 goals and 157 points along with 723 penalty minutes. He is Wilkes-Barre/Scranton's all-time leader in games played (335), goals (100), assists (153) and points (253), and in playoff points (38 in 51 games).