Done deal · 2026

Boulaye Dia joins Rennes on loan (option to buy)

Lazio → Rennes · Loan + option to buy, loan fee €2m · Value €5m · Confirmed

Confirmed 1 Sept 2026

Boulaye Dia, a forward, has joined Rennes on loan from Lazio for a loan fee of €2m, with an option to buy, confirmed 1 Sept 2026. The deal is now settled in Transfer Tracker's Done Deals record.

Who broke it: Santi Aouna, 30 Aug 2026, 1 day before completion.

How the deal happened

• Interest · not reported
• Talks · 30 Aug 2026 · Santi Aouna
• Agreed · 31 Aug 2026 · Benjamin Quarez
• Here we go · 31 Aug 2026 · Marc Mechenoua, Gianluca Di Marzio
• Signed · 1 Sept 2026 · Fabrizio Romano, Benjamin Quarez, Alfredo Pedulla

More business at Rennes and Lazio

• Patric: Lazio → Al-Ittifaq · Free · 28 Sept 2026
• Alidu Seidu: Rennes → Nice · Loan + option to buy · 18 Sept 2026
• Diogo Leite: FC Union Berlin → Lazio · Free · 8 Sept 2026
• Alessio Romagnoli: Lazio → Al-Sadd SC · €3m · 3 Sept 2026
• Arnaud Kalimuendo: Rennes → Nottingham Forest · €30m · 1 Sept 2026
• Jonathan Do Marcolino: Rennes → Annecy · 1 Sept 2026
• Albert Gudmundsson: Fiorentina → Lazio · Loan + option to buy (€12m) · 1 Sept 2026
• Petar Ratkov: Lazio → Levante · Loan + option to buy, loan fee €2m · 1 Sept 2026

• Boulaye Dia profile, value & stats
• Rennes transfers & squad
• Lazio transfers & squad
• Done Deals · every completed transfer & spend tracker

See the full completed-deal record and more business at both clubs. Open on transfertracker.ai