Montreal Canadiens legend Guy Lafleur has died at the age of 70, CBC News reported Friday.

A cause of death is unknown at this time, though Lafleur reportedly experienced health issues in recent years. According to CBC News, his lung cancer returned in Oct. 2020.

Before that, the hockey icon, who won five Stanley Cup titles with Montreal, underwent quadruple bypass heart surgery in Sept. 2019, followed by lung surgery two months later.

Lafleur spent the 1988-89 season with the Rangers after his career in Montreal ended.