Christian Constantin (born 7 January 1957) is a Swiss architect. He is the owner and president of Swiss football club FC Sion. He bought the club, which had previously neared bankruptcy and was relegated from the Swiss Super League, in 2003.
During his ownership of FC Sion, Constantin has employed many head coaches and incurred a transfer ban from FIFA due to the signing of Essam El-Hadary. This transfer ban then led to the club being expelled from the 2011–12 UEFA Europa League as players signed during the transfer embargo were used in competition.
- McGuire, Annie (17 August 2011). "Sion president the embodiment of a controversial club". BBC Sport. BBC. Retrieved 18 August 2011.
- "Ambitious FC Sion President Divides Swiss Opinion". Inside Futbol. 2010-12-13. Retrieved 2010-12-17.
- "Celtic get Europa League lifeline after Sion expelled". BBC Sport. BBC. 2 September 2011. Retrieved 3 September 2011.
- Official website (English)
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