Kalidou Sidibé

Recent reports from May 2026 state a current market value of €2.0 million, an increase from a €1.8 million valuation in January 2026, both per Transfermarkt. A year prior, in May 2025, Guingamp reportedly valued the player at £1.7 million (approx. €2.0 million), with Celtic linked to a bid of the same amount. In March 2025, reports suggested Celtic was willing to pay nearly £2 million (approx. €2.2 million). His last completed transfer was from Quevilly Rouen to Guingamp in August 2023 for a reported €700,000.

Our valuation is driven by consistent market value estimations for Kalidou Sidibé from Transfermarkt, which rose from €1.8 million to €2.0 million in 2026. This is supported by reports from 2025, when he had a year left on his contract, indicating Guingamp valued him at approximately €2.0 million, with interest from Celtic reportedly in the €2.0-€2.2 million range. While he is set to move on a free transfer, this estimate reflects his underlying market worth.