Wales warn George North to cut out defensive mistakes in Six Nations

• Shaun Edwards highlights team’s weakness on right wing before Ireland match• Edwards: ‘Players didn’t do what they practised in the buildup to the game’Wales expect a reaction from George North against Ireland in Cardiff on Friday having given the wing a “warning” after defensive lapses against Scotland.The Wales defence coach, Shaun Edwards, highlighted the right wing, where North has been playing out of position for his country this season, as defensively suspect and said individual mistakes had been worked on in training. Related: Wales struggle for answers before must-win Six Nations gam…