South Africa carry back-row strength against Wales to face New Zealand

• Duane Vermeulen’s touch of class decisive in gruelling win over Wales• Bismarck du Plessis and Lood de Jager are injury doubts for semi-finalFor those who like their back-row forwards Twickenham was the place to be on Saturday – and it will be again next Saturday. South Africa’s breakaway trio went toe-to-toe with Wales’s in a titanic clash that acted as a microcosm for a brutal quarter-final, decided in the midst of the carnage by a moment of subtlety from Duane Vermeulen for a 23-19 win. The Springboks, beaten in their first game by Japan in the greatest upset of them all, now move on to a…