Graeme Smith recorded his highest World Cup score after two of his more unheralded bowlers had set up South Africa’s seven-wicket win over Scotland on Tuesday.With a previous top score of 67 against the Netherlands on Friday, Smith hit 91 in just 65 balls to follow on from Andrew Hall and Charl Langeveldt’s combined five-wicket haul at Warner Park.Smith hit 13 boundaries as South Africa, helped by AB de Villiers’ 62, overtook Scotland’s total of 186-8 with more than 26 overs still to be bowled in the Group A match. Hall had earlier taken 3-50 and Langeveldt 2-48, their figures inflated by a late flurry of shots as Dougie Brown (45), John Blain (23) and Paul Hoffman (18) took Scotland to their best World Cup score.Smith and de Villiers, who hit nine fours and two sixes in 45 balls, shared a 134-run opening stand to set up South Africa’s comfortable victory, four days before the group’s defining clash with Australia. Smith won the toss and opted to field, with Makhaya Ntini’s return for Andre Nel the only change to the team that beat the Netherlands by 221 runs. The match started slowly, with Watts and Haq watchfully taking Scotland to 16-0 by the eighth over. Hall replaced Ntini in the 12th over and struck on his second ball with Scotland on 35, having Haq caught behind for 13. Langeveldt replaced Pollock and Watts (24) nicked his first ball to Smith at slip to leave Scotland on 43-2.