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2030 Bulgaria–Greece–Romania–Serbia UEFA Euro 2028 and 2030 FIFA World Cup bid
The Bulgaria–Greece–Romania–Serbia UEFA Euro 2028 and 2030 FIFA World Cup bid was a joint bid to host the UEFA Euro 2028 and 2030 FIFA World Cup by Bulgaria, Greece, Romania and Serbia. The bid was led by the Craiova Group.
For the 2026 FIFA World Cup, it has been confirmed that stadiums must have a capacity of at least 40,000 for group round matches and second round matches, 50,000 for quarter final and 60,000 for the semi-finals and at least 80,000 for the Opening Match and Final; none of the countries concerned have stadiums with such a capacity for the opening and final matches as of yet and the rules for 2030 have not been announced. Olympic Stadium was the stadium mentioned to host the Opening Match, while the Bucharest Arena was set for the Final match.