Rooney marked the day with a #tbt post of himself and his friends celebrating post-match, accompanied by a shamrock and what he thought was the Irish flag.

However, the footballer was left red-faced after his eagle-eyed followers pointed out that the flag in question was actually the Ivory Coast flag. The mistake was quickly fixed, but not before dozens of comments mocking him began building up underneath the picture.

St Patrick’s Day is the Feast Day honouring of Ireland’s patron saint, St Patrick. Celebrations are being marked in Ireland with parades, festivities and a fair bit of green fancy dress and a number of famous landmarks have also been lit up in green to mark the day.

St Patrick's Day 2016: Celebrations around the world Show all 10 1 /10 St Patrick's Day 2016: Celebrations around the world St Patrick's Day 2016: Celebrations around the world Revellers take part in the St Patrick's Day parade through central London Getty Images St Patrick's Day 2016: Celebrations around the world A kayaker floats on the Chicago River after it is dyed green for the annual St. Patrick's Day celebration Rex St Patrick's Day 2016: Celebrations around the world People take part in the annual St. Patrick's Day Parade in downtown Chicago Rex St Patrick's Day 2016: Celebrations around the world Performers take part in the Mayor of London's St Patrick's Day Parade and Festival in London PA St Patrick's Day 2016: Celebrations around the world A woman dressed in colours of the Irish flag takes part in the St Patrick's Day parade through central London Getty Images St Patrick's Day 2016: Celebrations around the world New York City Mayor Bill de Blasio, left, waves at spectators as he marches in the St. Patrick's Day Parade in the Rockaways neighborhood of the Queens borough of New York AP St Patrick's Day 2016: Celebrations around the world People dressed in historical costumes from the 1916 Easter Rising take part in the St Patrick's Day parade through central London Getty Images St Patrick's Day 2016: Celebrations around the world Members of the People for the Ethical Treatment of Animals (PETA) holds placards saying 'Go Green-Go Vegan' and wearing green body paint duo urges people to eat green on the eve of St Patrick's Day, during a demonstration outside Lalbagh Botanical Gardens, in Bangalore, India EPA St Patrick's Day 2016: Celebrations around the world People gather in Dublin's city centre for a street party in support of the undocumented migrants in Ireland and the US held by Migrant Rights Centre Ireland PA St Patrick's Day 2016: Celebrations around the world The fountain on the South Lawn of the White House is colored green in Washington Getty Images