It's advantage Proteas in the second Test in Gqeherba, but a gutsy Sri Lanka need 153 runs to pull off what would be a record-setting run chase.
South Africa wrapped up the second Test and the series 2-0 with a best-ever innings and 273 victory over Bangladesh in Chattogram on Thursday.
South Africa seamer Kagiso Rabada has risen to the top of the latest ICC Men's Test Player Rankings.
Proteas' seamer Kagiso Rabada picked up match figures of 9 for 72 as South Africa defeated Bangladesh by seven wickets in Mirpur on Thursday.
Kagiso Rabada took his 300th Test wicket to help the Proteas hold a slight edge after the opening day of the first Test against Bangladesh in Dhaka.
South Africa managed to eke out victory in the second Test against the West Indies in Guyana on Saturday, securing the series 1-0.