Rory McIlroy and Graeme McDowell at The Gleneagles Hotel in 2014. Photo: Getty

Rory McIlroy and Graeme McDowell at The Gleneagles Hotel in 2014. Photo: Getty

When Rory McIlroy won the Masters last month, the flag ­hoisted at the ­Augusta ­National Golf Club wasn’t the official flag of Northern Ireland, because no such flag exists. Instead, the golfing authorities ran the Ulster Banner up the flagpole.

It wasn’t an error — this is the flag that many people in Northern ­Ireland recognise as theirs and it’s one ­McIlroy, who is proud of his north Down roots, has personally held.