Prosvetov was designated for waivers by the Flames on Thursday.
Prosvetov appears to have lost the training camp battle against Devin Cooley for the backup job in Calgary -- though the team could still flip the two netminders prior to Opening Night against the Oilers on Wednesday. With Dustin Wolf firmly cemented as the No. 1 option for the Flames, Prosvetov was unlikely to see significant starts to begin with.