The Utah Mammoth have acquired Calgary Flames defenseman MacKenzie Weegar in a significant trade, bolstering their blueline as they pursue their first playoff berth. The Mammoth sent defenseman Olli Maatta, prospect Jonathan Castagna, and three 2026 second-round draft picks to the Flames for Weegar, a 32-year-old defenseman in his 10th NHL season.

Weegar had to waive his no-trade clause to facilitate the deal, which was first reported by Sportsnet. He is signed through the 2030-31 season with a $6.25 million annual cap hit. To help make the money work under the cap, the Mammoth sent Maatta to the Flames. The 31-year-old veteran defenseman is signed through 2027-28 with a $3.5 million cap hit and had been the odd-man out of the Utah defense corps this season.

Weegar's point totals have decreased over the past two seasons, and this campaign with the Flames has been disastrous: three goals and 18 assists in 60 games, skating to a minus-35, the worst rating in the NHL this season. The Mammoth are counting on Weegar rediscovering his game with a change in scenery and a new defense partner, as Utah could pair him with top defender Mikhail Sergachev.