LONDON (AFP) - Herschelle Gibbs top-scored with 48 to steer South Africa to a six-wicket win over Sri Lanka in their World Twenty20 warm-up at Lord's on Wednesday. Sri Lanka had struggled to 109-9 after being reduced to 44 for 7 at one stage with Angelo Mathews (28) and Nuwan Kulasekera (24) rallying in the closing over with valuable late runs. Dale Steyn, who removed both openers Tillakaratne Dilshan and Sanath Jayasuriya, Jacques Kallis and Johan Botha all collected two wickets each. South Africa reached their target with five balls to spare thanks to Gibbs and AB de Villiers (32) who put on 70 for the third wicket. Sri Lanka were let down by poor fielding with Gibbs dropped twice. SCOREBOARD SRI LANKA: T Dilshan c Gibbs b Steyn 6 S Jayasuriya lbw b Steyn 1 J Mubarak run out (Gibbs) 8 K Sangakkara lbw b Botha 17 M Jayawardene b Botha 3 C Silva c Boucher b Kallis 1 S de Saram c Smith b Kallis 5 A Mathews c and b Morkel 28 F Maharoof c Duminy b Parnell 11 K Kulasekara not out 24 I Udana not out 1 EXTRAS: (b1, lb1, w1, nb1) 4 TOTAL: (9 wickets; 20 overs) 109 Did not bat: L Malinga, A Mendis Fall of wickets: 1-6 (Dilshan), 2-15 (Jayasuriya), 3-16 (Mubarak), 4-35 (Jayawarden), 5-36 (Silva), 6-40 (Sangakkara), 7-44 (de Saram), 8-75 (Maharoof), 9-97 (Mathews) BOWLING: Steyn 4-0-14-2 (1nb) Parnell 4-0-29-1 (1w) Morkel 4-0-35-1 Kallis 3-0-12-2 Botha 3-0-9-2 Van der Merwe 2-0-8-0 SOUTH AFRICA J Kallis lbw b Kulasekara 2 G Smith c Kulasekara b Malinga 1 H Gibbs b Malinga 48 AB de Villiers c Malinga b Udana 32 JP Duminy not out 12 M Boucher not out 8 EXTRAS: (b4, lb1, w5) 10 TOTAL: (4 wickets; 19.1 overs) 113 Did not bat: A Morkel, R van der Merwe, J Botha, D Steyn, W Parnell, J Ontong, R Peterson Fall of wickets: 1-5 (Smith), 2-7 (Kallis), 3-77 (de Villiers), 4-100 (Gibbs) BOWLING: Malinga 4-0-21-2 (3w) Kulasekara 3.1-1-13-1 Mendis 4-0-23-0 Udana 4-0-23-1 Jayasuriya 2-0-9-0 (1w) Maharoof 1-0-8-0, Dilshan 1-0-11-0 Result: South Africa won by six wickets Umpires: A Hill (NZL) and S Taufel (AUS) Reserve umpire: M Erasmus (RSA).