“It is a joint bid between the United Kingdom and the Republic of Ireland in terms of hosting the Euros, so we know the Irish Government is obviously going to contribute to whatever additional funding is required in their jurisdiction.

Source: https://www.newsletter.co.uk/news/politics/uk-government-funding-casement-park-during-budget-crisis-raises-many-questions-says-dup-leader-sir-jeffrey-donaldson-4368930