What happened: Cliff Fletcher, the visionary executive who built the Calgary Flames into a powerhouse, has died at age 90. Fletcher served as the Flames' general manager for 19 years, leading the franchise from its inception in Atlanta through its 1989 Stanley Cup title.

Why it matters: Known as "Trader Cliff" for his aggressive deal-making, he later revitalized the Toronto Maple Leafs through franchise-altering moves in the 1990s. His induction into the Hockey Hall of Fame in 2004 cemented his status as one of the game's most influential builders.

What to watch: The NHL is expected to honor Fletcher's immense legacy during the remainder of the 2026 postseason.