Sri Lanka complete three wickets win after South Africa suffered lowest T20I scores just 98.
Dananjaya and Mathews propel Sri Lanka to massive win but South Africa won series 3-2.
Sri Lanka end 12 matches losing streak against South Africa in tense clash.
Reeza Hendricks hits ton on debut and Duminy 92 to help Proteas beat hosts by 78 runs in 3rd ODI and seal series.
The visitors restricted Sri Lanka to 244 for 8, while de Kock scores 87 helped them chase down the target with four wickets in hand
South Africa had won the first ODI by 5 wickets. Another win will take them closer to clinching the 5-ODI series.
