Utah Mammoth preseason: seven games, split-squad openings, and a host of roster battles. Veterans and six first-rounders compete for NHL spots as camp narrows. Rookies Dmitri Simashev and Maveric Lamoureux loom as breakout candidates, while forwards like Michael Carcone, Kailer Yamamoto and Cole Beaudoin push to seize bottom-six roles. A crowded defense corps—Sergachev, Marino, Durzi, Määttä, Schmidt, Cole, DeSimone and Välimäki—faces potential shifts. The Delta Center hosts a notable return, and streaming options remain fluid.