Gyllenborg arrives in Kansas City as an undrafted rookie, rostered in essentially zero leagues and carrying a dynasty value that barely registers at TE78. The profile underneath explains the cold market: a 9% drop rate tied to concentration lapses, stiff hips that cap his short-area burst, and a contested-catch rate under 47% that flags real trouble against physical coverage. His 2025 route usage was narrow too, with roughly 60% of his routes funneled into outs, ins, flats, and crossers, and just 5.4 yards after the catch per reception to show for it.

The blocking is raw and needs significant development before he earns meaningful snaps. Add a checkered injury history -- a 2024 high ankle sprain and a 2025 hamstring -- and there's little here for redraft managers. A favorable schedule does nothing to move the needle when a player has no defined role. Treat him strictly as a deep-league taxi flier in tight end premium formats and move on.