Dwaine Pretorius made the most of a promotion to No. 3 in the batting order to hit 77 not out in the third T20I and lead South Africa to a 45-run win under the Duckworth-Lewis method and a 3-0 series sweep over Sri Lanka on Sunday.
The teams finish tied in a helter-skelter end to the regulation 20 overs a side after South Africa collapsed from a position where victory seemed certain and had to scramble a single off the last ball of its chase to tie the scores.
Resuming the third day of the second Test against South Africa on 60/2, Sri Lanka batsmen Oshada Fernando and Kusal Mendis struck unbeaten half-centuries to guide the team towards a historic eight-wicket win.
Sri Lanka seamer Kasun Rajitha grabbed two wickets as South Africa limped to 91 for five at tea on day two of the second and final Test at St George's Park on Friday as the game continues to move forward at pace.