Wales call up Gloucester’s Ross Moriarty to replace injured wing Eli Walker

• Walker suffers hamstring injury during World Cup training• Flanker Moriarty drafted into Wales squadAfter losing Leigh Halfpenny and Rhys Webb from their World Cup squad last week, Wales were forced to replace a replacement when the wing Eli Walker, who joined the 31 in place of Halfpenny, suffered a hamstring injury in training. He is considered unlikely to be fit for at least the first three group matches.Walker was replaced not by another back but by a forward, an indication Liam Williams, who has not played since last season because of a foot injury, has made a full recovery and will sta…