Lucas Rosier (born 12 March 2007) is a French professional footballer who plays as a winger for club Concarneau on loan from Rennes.
Career Rosier is a product of the Guadeloupean club Stade Lamentinois before moving to Metropolitan France with Rennes in 2022 where he finished his development. On 27 July 2024, he signed his first professional contract with Rennes until 2028. He made his senior and professional debut with Rennes as a substitute in a 4–1 win over Strasbourg on 2 November 2025.
For the 2026–27 season, Rosier has been loaned to Concarneau in Ligue 3.
International career Born in Guadeloupe, Rosier was called up to the France U18s in 2024.
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