South Africa defeated the West Indies by one run in the third T20 International of the five-match series at the National Cricket Stadium in Grenada on Tuesday. Scores: South Africa 167-8 (Q. de Kock 72, R. van der Dussen 23, A. Markram 23; O. McCoy 4-22, D. Bravo 3-25) v West Indies 166-7 (E. Lewis 27, N. Pooran 27, A. Russell 25; T. Shamsi 2-13, A. Nortje 2-29) South Africa lead the series 2-1 afp