Poster Sportivo Editoriale con Collage di Atleta

A premium vertical sports poster design for [Riyad Mahrez], styled like an Adidas football campaign with a bold editorial collage aesthetic. Set against a clean white canvas with high-contrast black, grey, and red graphic elements. Composition: centered full-body male footballer walking forward, slightly left of center, wearing an all-black casual athletic outfit consisting of a black bomber jacket, black polo shirt, black slim trousers, and white sneakers, with one hand in pocket and soft studio floor shadows. In the background, a giant black-and-white cropped portrait silhouette of the same athlete fills most of the frame. Graphics & Accents: a large tilted red geometric shape with a wide white diagonal stripe cropped off the bottom right, and a small red diamond shape near the top right. Text and logo layout: massive semi-transparent vertical uppercase typography reading "[MAHREZ]" layered over the portrait silhouette on the left; small vertical text reading "[RIYAD]" near the upper-left edge; a red handwritten signature reading "[Mahrez]" with "26" beneath it in the lower-left area; small uppercase caption "RIYAD MAHREZ / ALGERIA NATIONAL TEAM / WINGER"; and a black Adidas logo at the bottom-left corner. Visual style: luxury commercial sports advertising, monochrome photography paired with vivid red accents, subtle film grain and halftone texture, crisp sans-serif type, sharp contrast.