Shaun Edwards expects George North to up game

North had a poor game defensively when Wales conceded 20 unanswered points at Murrayfield nine days ago, a Scottish second-half onslaught that was highlighted by tries for wings Tommy Seymour and Tim Visser.
And while North is expected to keep his place when Wales host Ireland on Friday night, defence specialist Edwards knows individual defensive errors anywhere in the team cannot be repeated.