Penguins prospects wrap the Buffalo showcase with Avery Hayes stealing headlines, knotting a late winner against Boston and scoring twice versus Columbus, signaling a real push for a 2025-26 camp spot. Pittsburgh then pivots to public training camp sessions at UPMC Lemieux Complex beginning Sept. 18, with a noon Monday game against Sabres prospects to cap the Challenge before the team ramps up for the preseason against Montreal on Sept. 22.