The Utah Mammoth pulled off a blockbuster trade Wednesday night, acquiring JJ Peterka from the Buffalo Sabres.

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 Sabres traded forward J.J. Peterka to the Mammoth early Thursday morning in exchange for defenseman Michael Kesselring and forward Josh Doan, the teams announced. As part of the transaction, Peterka – who was set to become a restricted free agent – signed a five-year extension with Utah with an average annual value of $7.7 million.