Flames goalie Miikka Kiprusoff announced his retirement on Monday after 12 NHL seasons, according to an ESPN.com report.

The 36-year-old Kiprusoff, who began his career with the Sharks, joined the Flames in 2003 and spent nine seasons with Calgary.

Kiprusoff says he made the decision to retire at the end of last season, but thought about it over the summer before making an announcement that he was "100 percent sure."