SINGAPORE – It was a cool 23 deg C at the Gillette Stadium when the words “Time for hydration break” flashed across a large LED display during Norway and Iraq’s FIFA World Cup group stage clash on June 16.Boos rang around the stadium in response to FIFA’s mandatory three-minute hydration breaks, which were introduced for the first time at a World Cup to help players cope with the heat of the North American summer.The breaks, which occurred once in each half, became one of the tournament’s most contentious talking points.Critics argued that they disrupted the flow of the game, while…