The attack stays sharp; the field dissolves behind it.
Blur only what moves.
Prompt
FLUX.2 [pro]cinematic film still, frame from a movie: a track cyclist attacking off a banked velodrome curve, rear wheel dissolving into speed blur, rivals dropping out of focus behind, remote camera hugging the boards, anamorphic streaks off the rail, hard tungsten key against deep shadow, graded oak-and-crimson, the gap opens now or never