Buffalo traded Peterka, 23, to the Mammoth in exchange for defenseman Michael Kesselring and right winger Josh Doan. Daily Faceoff’s Frank Seravalli and Sportsnet’s Elliotte Friedman were among those who reported the trade before the teams announced it Wednesday night.

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.