Ireland versus England primes Andy and Owen Farrell for ultimate family affair

Father and son will be in opposition camps for Saturday’s grand slam decider and sentiment will be put to one side as senior looks to stop in-form juniorIt was just before half-time in his first England appearance at Twickenham when Owen Farrell chipped over the top against Wales, gathered his deft kick and was promptly walloped into next week by the on-rushing George North. The crowd had been ignited as the TV camera panned to Andy Farrell, England’s new defence coach, who was wearing a wry smile – it was hard to tell which part he had enjoyed more.It is a moment that has stayed in the memory…