Valentin Rosier, a French right-back, joins CD Leganés for the 2024/25 season after spending four seasons with Besiktas, including a loan spell at Nice last year. Rosier has played 206 official matches and scored 6 goals in total. He started his professional career at Dijon FCO, then moved to Sporting CP in June 2019 before joining Besiktas in 2020. He has also represented France at the U21 level and competed in European tournaments.

Leganés has officially signed the 27-year-old French right-back Valentin Rosier for the 2024-2025 season. He arrives on a free transfer after spending the last four seasons with Turkish club Besiktas.