Mammoth Trade 3 Players to Sabres for Forward JJ Peterka

The Utah Mammoth may be on the verge of adding another dynamic young piece to their roster. According to multiple sources, the Buffalo Sabres have agreed in principle to trade forward JJ Peterka to the Mammoth. Something minor was holding up the deal — possibly a no-trade clause or contract stipulation — but the trade is said to be going through.

It has not yet been officially revealed what the return is. Elliotte Friedman notes, “Hearing the JJ Peterka deal to Utah is for Michael Kesselring and Josh Doan. Three players, no picks.”

Breaking: Sources say #Sabres have agreed in principle to trade forward JJ Peterka to @utahmammoth. BUT there is apparently a contingency holding up deal.

If completed, and still a big if, would be a big get for #TusksUp adding another 23-year-old top line forward to the mix.

— Frank Seravalli (@frank_seravalli) June 26, 2025

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According Daily Faceoff’s Frank Seravalli, “Trade call being arranged. This is happening.”

If finalized, the move would mark a significant acquisition for Utah, which continues to build a competitive roster. Peterka, 23, is coming off a breakout campaign in 2024–25, tallying 27 goals and 41 assists. Known for his speed and skill in transition, Peterka brings top-line potential and offensive upside, and there were reportedly several teams linked to trade interest in the forward.

The Mammoth — who chose their team name via a fan vote that drew over 850,000 participants — have made it clear they intend to compete early. Adding a young, cost-controlled winger like Peterka would fit their strategy perfectly, providing another foundational piece alongside players like Logan Cooley and potentially Matias Maccelli, who himself has been the subject of trade rumors this week. It’s unclear if adding Peterka increases the likelihood that Maccelli is dealt.

With Peterka on the go, focus will now shift to what happens with defenseman Bowen Byram. He, too, is being talked about as a possible star on the way out.

While the final hurdle in the Peterka trade has yet to be cleared, this is a big trade to drop late on Wednesday night.

Next: Flames to Trade Rasmus Andersson After Failed Extension Talks