In swinging the left leg at a half opening for goal, Daire Ó Baoill took a bang that required him to go off for a moment’s treatment. As he was coming up the Ballyshannon sideline towards the middle ...

The NBA’s 75 officials have to quickly trust their eyes, ears and feet while being the final arbiters of a 75-page rule book, and they have milliseconds to decide whether a player has violated a rule.