Lamine Sy Scout Report — AJ Auxerre | Ligue 1 24-Year-Old Right-Back

Academy Nations League series — France (Ligue 1): AJ Auxerre
Following the goalkeeper (Mamadou Diop) and centre-back (Axel Tuanzebe) files, we move to the third slot in the series’ eight-position pattern at AJ Auxerre: right-back. Our subject is Lamine Sy, a former midfielder converted to right-back who came up through Caen’s academy, joined Auxerre as a free agent, and was called up to the Senegal national team in 2026.

Profile and monitoring framework

Born in Les Mureaux on 10 August 2002, Sy progressed through OFC Les Mureaux before joining Stade Malherbe Caen’s academy, where he was converted from midfield to right-back. After 28 appearances for Caen’s reserve side and a 2023-24 loan at FC Rouen (31 appearances, 3 goals), he made his senior Caen debut in Ligue 2 in February 2022 and accumulated 23 appearances for the first team before leaving as a free agent for Auxerre in July 2025. He immediately became a regular, starting 24 matches in 2025-26, and has continued as the first-choice right-back in 2026-27 (5 starts, 449 minutes, 1 goal, 6.78 average rating per fotmob), scoring against Lens on 22 August. Internationally, despite being eligible for France, he had never represented any French youth or senior team, which allowed the FFF to confirm his eligibility for Senegal on 18 September 2026; he was subsequently called into Patrick Vieira’s first squad and has earned 3 caps (0 goals) heading into Senegal’s 2027 Africa Cup of Nations qualifying campaign.

Watch criteria: (1) whether his 1.71m frame becomes a liability against more physical wingers as Ligue 1 defences settle; (2) whether his attacking output (1 goal, 3 goals in his Rouen loan season) translates into a repeatable creative contribution rather than a small-sample spike; (3) whether his new Senegal recognition and long contract (through 2030) point to Auxerre building around him as a long-term asset.

GegenSports scout note

Scout verdict: Long-term watch list, not an active target — Sy is a fast, attack-minded right-back who has gone from a midfield convert at Caen’s academy to a first-choice starter in his first full Ligue 1 season, with a recent Senegal call-up and a freshly extended contract signalling club confidence. GegenSports score: 64/100 (pace and agility 15/20, attacking contribution 13/20, defensive consistency 12/20, physical duels 10/20, club trust/continuity 14/20). His profile theoretically fits clubs seeking a young, fast, budget-friendly attacking right-back — his relatively low market value (€2.1m) keeps him accessible in theory — but his long new contract and the small sample of Ligue 1 and international appearances mean this should stay a monitoring case for now.

Frequently asked questions

Who is Lamine Sy? A 24-year-old right-back at AJ Auxerre, born in France but representing Senegal internationally.

What position does he play? Right-back; he started his career as a midfielder before converting.

How did he join Auxerre? As a free agent from Stade Malherbe Caen in July 2025.

What is his record at Auxerre so far? 24 Ligue 1 starts in 2025-26, and 5 starts (1 goal, vs Lens on 22 August) in 2026-27.

Has he played for a national team? Yes — 3 caps for Senegal (0 goals) as of 4 October 2026, after the FFF confirmed his eligibility on 18 September 2026; he is part of Senegal’s 2027 AFCON qualifying squad under new coach Patrick Vieira.

Would he suit the Süper Lig? His pace and attacking profile fit in theory and his market value is low, but his contract through 2030 makes a near-term move less likely.

What is his market value? Roughly €2.1m per Transfermarkt (1 October 2026).

Does he have an injury history? Yes — two knee issues during his Caen years (2024) and an Achilles tendon problem in 2025, plus a brief illness in March 2026; no current injury concerns.