The Calgary Flames traded defenseman MacKenzie Weegar to the Utah Mammoth for blue-liner Olli Maatta, forward prospect Jonathan Castagna, and three 2026 second-round picks, the teams announced.
The second-rounders were originally owned by Utah, the New York Rangers, and the Ottawa Senators.
Weegar agreed to waive his no-trade clause to facilitate the move. The 32-year-old is signed through 2030-31 with a $6.25-million cap hit.
He's in the midst of a down year with 21 points and a minus-35 rating in 60 games. However, Weegar notched 47 points last season and set career highs with 20 goals and 52 points in 2023-24.
Weegar's underlying numbers in the previous two campaigns were impressive: He ranked third among NHL defensemen with 18.5 goals above replacement last season and 42nd with 9.2 GAR in 2023-24, per Evolving-Hockey. This season, Weegar ranks 277th among 279 defensemen with minus-8 GAR.
He shoots right but has frequently played the left side throughout his 10-year NHL career. The Mammoth's defense features a diverse mix of lefties in Mikhail Sergachev, Nate Schmidt, and Ian Cole, plus righties Sean Durzi and John Marino.
Maatta's role has been reduced in Utah this season, as he's appeared in 22 games while averaging 12:10 per contest. The 31-year-old is under contract for two more seasons after 2025-26 with a $3.5-million cap hit.
Castagna, a 6-foot-2 center, was a third-round pick by the Arizona Coyotes in 2023. He's tallied 14 goals and 18 assists in 29 games at Cornell this season.
