NEW Zealand coach John Hart said the injury sustained by flyhalf Andrew Mehrtens in Sunday’s 30-18 defeat of Scotland in a World Cup quarter-final did not seem too serious. “He received a bang on the knee,” Hart said of his influential number 10, who limped off at halftime in the game at Murrayfield and was replaced by Tony Brown. “We don’t think there is any serious damage but we will not know for sure until he undergoes a scan (on Monday), he added. New Zealand play France in the semi-finals on Sunday.