Prokop has played the last three seasons with Union College and has 85 points in 107 games at the NCAA level. This season he has 27 points in 36 games.
The 23-year-old from Wausau, Wis., was never drafted but has previously attended development camp with the Vegas Golden Knights.
Before joining Union College he played four seasons in the USHL with Muskegon Lumberjacks, Green Bay Gamblers and Des Moines Buccaneers.
