The Utah Mammoth announced this week that Sebastian Cossa has signed a two‑year contract, marking the latest move in a busy offseason for the franchise. The deal comes after the goaltender was traded from the Grand Rapids Griffins, where he spent the last four seasons honing his craft in the AHL.
A Fresh Face in the Crease
Cossa will serve as the backup to veteran Karel Vejmelka for the upcoming campaign, giving the Mammoth a reliable tandem between the pipes. The move is part of a broader strategy to blend experience with the team's youthful energy as they target a 2027 Stanley Cup Playoff berth.
Across 123 regular‑season games with Grand Rapids, Cossa posted a .911 save percentage and a 2.46 goals‑against average, including eight shutouts. In the 2025‑26 season alone he recorded a 2.33 GAA, a .915 save percentage and five shutouts over 39 appearances, numbers that have drawn praise from analysts and fans alike.
Speaking about the new opportunity, Cossa said he is eager to bring his best effort every day and be a good teammate. He credited former Griffins colleague Dylan Guenther for sharing positive feedback about the Mammoth organization, which helped seal his decision to join the club.
Looking Ahead
The Mammoth’s front office views Cossa as a key piece of a young, talented group that hopes to make a deep run in the playoffs. With a mix of proven performance and youthful ambition, the team believes the goaltender’s addition may help turn playoff aspirations into reality.