The Buffalo Sabres opened up their 2025 Prospects Challenge on Friday with a 4-2 loss to the New Jersey Devils prospects at LECOM HarborCenter, but for those who attended to get their first look at 2025 first-rounder Radim Mrtka, the big 18-year-old defenseman put on an impressive performance. The Czech blueliner scored the Sabres opening goal in the first period and throttled a Devils player to the ice with a hard check in the third period.