The Mammoth and Sabres announced the swap Wednesday night. The Mammoth sent winger Josh Doan and defenseman Michael Kesselring to the Sabres in the deal. Peterka also agreed to a five-year, $38.5 million contract extension with the Mammoth.

Utah acquired forward J.J. Peterka from the Buffalo Sabres in exchange for defenseman Michael Kesselring and forward Josh Doan. Peterka, who would’ve been a restricted free agent, agreed to a five-year, $38.5 million contract extension ($7.7 million average annual value) with the Mammoth as part of the trade.

The 23-year-old Peterka is coming off consecutive 25-plus goal seasons, including 27 this year with a career-best 68 points in 77 games.