Cathal O'Sullivan

In January 2026, reports indicated that while the player is a free agent, a 'low six-figure' compensation fee is due to his former club, Cork City. His Transfermarkt market value was consistently reported at €125,000 in rumours from June 2025 through January 2026.

Our valuation is driven by the reported 'low six-figure' FIFA development compensation fee due for Cathal O'Sullivan's move as a free agent. While prior interest from Premier League club Crystal Palace indicated higher potential, a second significant injury has tempered his immediate market value. The move to a Championship club and a consistent Transfermarkt valuation of €125,000 support an estimate centered on the required compensation payment.