On Wednesday afternoon, Warren Gatland named his 41-man Lions squad for the tour of New Zealand.
The squad is broken down into 16 players from England, 12 from Wales, 11 from Ireland and two from Scotland.
In their attempt to graphically display this breakdown, BT Sport made a major error.
They did not take into account that the IRFU governs rugby on the island of Ireland, not just Northern Ireland as their graphic showed.
This was a fact which the IRFU Twitter account was quick to point out.
BT Sport swiftly removed the graphic after their error was highlighted.