The Utah Mammoth announced today that they have acquired goaltender Sebastian Cossa from the Detroit Red Wings in exchange for the 23rd overall draft choice in the first round of the 2026 NHL Draft, which was previously acquired from the Boston Bruins.
“We are thrilled to add another big, athletic goaltender to our organization,” said Bill Armstrong, general manager of the Utah Mammoth. “Sebastian is a talented goalie and we are excited to see what he can accomplish with our club.”
About Sebastian Cossa:
- Cossa, 23, earned a 26-8-4 record, 2.33 goals-against average (GAA), .915 save percentage (SV%), and five shutouts in 39 AHL games with Grand Rapids Griffins in 2025-26. He represented the Griffins at the AHL All-Star Game in 2025 and 2026.
- The 6-foot-6, 221-pound goaltender has posted a 70-33-19 record, 2.46 GAA, .911 SV%, and eight shutouts in 123 regular-season AHL games over four seasons with Grand Rapids.
- He has added a 5-6-0 record, 3.04 GAA, and .893 SV% over 11 career Calder Cup Playoff appearances.
- Cossa made his NHL debut with the Detroit Red Wings on Dec. 9, 2024, stopping 12 of 14 shots faced at Buffalo to earn his first career win.
- He has also made 46 ECHL appearances with the Toledo Walleye in 2022-23, posting a 26-16-1 record, 2.56 GAA, .913 SV%, and four shutouts.
- Before turning professional, Cossa earned a 71-16-7 record, 2.12 GAA, .921 SV% and 14 shutouts over 98 WHL games with the Edmonton Oil Kings from 2019-22. Cossa played each of those three seasons alongside Mammoth forward Dylan Guenther.
- Cossa paced the WHL in GAA (1.57) and SV% (.941) in 2020-21 and led the Oil Kings to a WHL championship in 2021-22, registering a 16-3 record, 1.93 GAA, .919 SV%, and five shutouts in 19 postseason appearances.
- A native of Hamilton, Ont., Cossa also won a gold medal with Team Canada at the 2022 IIHF World Junior Championship and played for Team Canada White at the 2018 World Under-17 Hockey Challenge.
- He was originally selected by Detroit in the first round (15th overall) of the 2021 NHL Draft.
