World Rugby ditches match official after ‘oversight’ of attending England training

• Marius van der Westhuizen stood down for England v Ireland• South African replaced by Nigel Owens at TwickenhamWorld Rugby has stood Marius van der Westhuizen down as assistant referee for England’s Six Nations finale against Ireland after the game’s governing body admitted it had committed an oversight in allowing the official to attend an England training session this week.Van der Westhuizen will be replaced by Nigel Owens for the match at Twickenham on Saturday after World Rugby said Van der Westhuizen should not have taken part in the training session. Ireland were unaware that the South…