GALLE, JULY 6: Sri Lanka's leg-spinner Upul Chandana grabbed four quick wickets to mastermind a sensational South African collapse which gave the hosts a 37-run victory in the Singer Cup here on Thursday. The South Africans, chasing Sri Lanka's 249-7, appeared to be cruising home when openers Andrew Hall and Gary Kirsten put on 150 for the first wicket by the 32nd over. Off-spinner Muttiah Muralitharan triggered the slide by bowling Kirsten for 59 as the South Africans, rusty from a two-month lay-off, lost all 10 wickets in the space of 62 runs. South Africa ended on 212, giving Sri Lanka their second successive win in the tri-series following their five-wicket romp over Pakistan in Wednesday's opening match. Muralitharan finished with two for 34 and fellow off-spinner Kumara Dharmasena 1-41 to complete South Africa's downfall in their first match abroad since the match-fixing scandal broke in April and caused the unceremonious exit of former captain Hansie Cronje. Sri Lanka's victory was set up by a superb 84 from their new batting find Kumar Sangakkara, who was named man-of-the-match, and 60 from Russell Arnold. Sangakkara, a 22-year-old left-hander from Kandy justified his inclusion ahead of veteran wicket-keeper Romesh Kaluwitharana with 11 boundaries off 115 balls in only his second match. Sangakkara and Arnold put on 120 for the fifth wicket, following opener Avishka Gunawardena's 47, as Sri Lanka recovered from 35-3 to set a target of five runs an over.Hall, who hit 81 in only his third one-dayer, and Kirsten made light of the slow wicket, till South Africa's march was halted by the spinners. Kirsten's wickets were dislodged under-edging a sweep off Murlitharan, while Hall, who hit two sixes and six boundaries, followed two overs later when he offered a tame return catch to Chandana. That started a procession of wickets to justify Sri Lankan captain Sanath Jayasuriya's faith in his spinners. ScoreboardSri Lanka: Sanath Jayasuriya run out 0, Avishka Gunawardena c Boucher b Ntini 47, Maravan Atapattu c Boucher b Hayward 3, Mahela Jayawardena c Boucher b Kallis 8, Kumar Sangakkara run out 84, Russell Arnold not out 60, Upul Chandana b Kallis 2, Kumara Dharmasena c Pollock b Kallis 4, Chaminda Vaas not out 5; Extras:(lb5, nb7, w24) 36. Total (for seven wkts in 50 overs) 249Fall of wickets: 1-0, 2-14, 3-35, 4-99, 5-219, 6-224, 7-240Bowling: Pollock 10-1-34-0, Hayward 5-0-47-1, Kallis 10-0-42-3, Klusener 10-0-45-0, Ntini 8-0-40-1, Boje 7-0-36-0South Africa: Gary Kirsten b Muralitharan 59, Andrew Hall c&b Chandana 81, Jacques Kallis c Chandana b Dharmasena 11, Daryll Cullinan c sub (Dilshan) b Chandana 14, Jonty Rhodes c Sangakkara b Chandana 0, Lance Klusener run out 20, Mark Boucher run out 2, Shaun Pollock c Jayawardena b Chandana 5, Nicky Boje b Muralitharan 1, Mortantau Hayward not out 3, Mkhaya Ntini run out 0; Extras: (b4, lb4, w8) 16. Total: (all out in 48.2 overs) 212Fall of wickets: 1-150, 2-157, 3-176, 4-176, 5-192, 6-194, 7-206, 8-208, 9-211Bowling: Vaas 6-0-27-0, Zoysa 7-1-27-0, Dharmasena 10-0-41-1, Muralitharan 10-0-34-2, Chandana 10-0-44-4, Jayasuriya 2.2-0-15-0, Arnold 3-0-16-0Result: Sri Lanka won by 37 runs Man of the match: Kumar SangakkaraNext match: Pakistan v South Africa on Friday in Colombo