England’s Billy Vunipola ready to follow in family footsteps at World Cup

• Vunipola’s father played for Tonga against England in 1999• England defence coach ready for physical challengeBilly Vunipola will follow in the footsteps of his father and uncle on Sunday when appearing in a World Cup match between England and Tonga. Twenty years ago, his dad, Fe’ao, and his brother, Elisi, were part of the Tonga side who played England at Twickenham and two decades on Billy picks up the torch.Vunipola junior was a spectator that day, making his first trip to Twickenham aged six, hand in hand with his brother Mako. Tonga also played against Leicester at Welford Road on that …