Arne Engels, Celtic's record signing, was valued at £11m in the summer of 2024. Despite struggling to secure a starting position, the CIES Football Observatory estimates his value to be between €15m-€17m (£13.05m-£14.79m).
Previously, Engels' value soared to £17.75m and £25.3m after his Champions League and domestic performances. His current value is now comparable to Rangers' Nico Raskin.
The Celtic midfielder's value continued to soar when the Belgian was priced at around £17.75m and £25.3m by the football research group.
Author's summary: Engels' value is estimated between €15m-€17m.