Former Michigan goalie Shawn Hunwick, pictured above in his NHL debut for the Columbus Blue Jackets in 2012, announced his retirement from professional hockey on Monday, August 26.AP photo Former Michigan hockey goaltender Shawn Hunwick announced his retirement from professional hockey on Monday. There was no press conference, no tears, just a simple tweet stating that his brief professional playing career is over and his new career as a player agent is beginning. "I have made the difficult decision to stop playing.