Ross Moriarty’s ‘nasty edge’ puts him in line for Wales debut against Ireland

• Gloucester flanker in line for first cap in World Cup warm-up• Warren Gatland: ‘He is very explosive and has fitted in well’In a week when there have been, in the words of Warren Gatland, niggles and fights in training before Saturday’s World Cup warm-up against Ireland in Cardiff, the Wales head coach is giving a first cap to an England junior world championship winner who brings with him a “nasty edge.”The 21-year old Gloucester flanker Ross Moriarty, who played in two junior world championship finals, was born in St Helens but brought up in Swansea, where he watched his father, the former…