Piskula will be paid $550,000 in the NHL and $150,000 in the American Hockey League.
The 29-year-old Piskula played two games for Nashville last season and has appeared in 12 career NHL games with Calgary, Los Angeles and Nashville. The former University of Wisconsin player had three goals and 20 assists in 73 games last season for Nashville's Milwaukee affiliate in the AHL.
This is a great day for me. This is something I've been thinking about for a long time. This is a great opportunity that the St. Louis Blues organization, (owner) Tom Stillman and Doug Armstrong are giving me and trusting me in doing...This is going to be a great challenge for me.
— Martin Brodeur, after announcing his retirement as an NHL player and becoming a senior adviser with the Blues on Thursday