"Warren is a rigid defensive defenseman who shut down zone entries and dominated board battles thanks to outstanding physical attributes and a long, active stick. He neutralized countless rushes by highlighting a surprisingly impressive gap control and a superb stick placement, negating any shot options and driving enemies to the outside. Warren absolutely relished closing out on opponents rapidly, using his incredible strength to knock attackers off the puck. He even forced numerous dump-ins by meeting opponents at the blue line with crushing hits. Warren won the majority of his loose puck battles and cleaned the crease effortlessly by overpowering his rivals. He had his ups and downs on the breakout, showcasing a smooth-sailing four-way mobility, especially for his size, but also some inconsistency issues with his first passes and decisions-making. He also struggled with his puck control, which could get exposed under pressure. Warren’s offensive potential is prone to concerns, since as it stands, once he crossed the middle of the ice, he stayed pretty harmless and detached from the play. There were certainly a few flashes — some well-timed pinches, great jumps in open space and a powerful slap shot from the point — but his offensive skill set showed to be very raw. His value as a prospect manifestly doesn’t come from his offensive contribution, but his ceiling gets inadvertently affected. I view him as a late round prospect at the moment, but with the upside to reach the middle rounds if he progresses offensively."