South Africa beat defending champions West Indies by eight wickets in their second Super 12 match of the ICC T20 World Cup at the Dubai International Stadium. Opener Evin Lewis struck a fine half-century before South Africa restricted West Indies to 143/8. In response, South Africa batters overhauled the target in 18.2 overs. Rassie van der Dussen's unbeaten 43, Aiden Markram's 51 not out and Reeza Hendricks 39 played match-winning knocks as West Indies bowlers looked helpless. South Africa rebounded from their five-wicket loss to Australia on Saturday by inflicting a second successive defeat on West Indies, who had been rolled for a paltry 55 during a six-wicket reverse against England.West Indies now face a real battle to reach the semi-finals with their net run-rate having taken a hammering against England.