 The following season, Riendeau left the junior leagues to play Canadian college hockey for Sherbrooke College of the CEGEP.Riendeau returned to the juniors for the 1985–86 season, suiting up for the Drummondville Voltigeurs of the QMJHL.With a record of 33-20-3, Riendeau was able to sign as an undrafted free agent with the Montreal Canadiens before his season ended in the juniors.