Quinton de Kock got South Africa off to a blazing start after Sri Lanka opted to field.

Quinton de Kock scored 17 fours and a six in his 70-ball 94.

Niroshan Dickwella settled under a skier to dismiss Quinton de Kock six short of his hundred.

Thisara Perera's 3 for 26 helped Sri Lanka storm back into the contest.

Faf du Plessis scored 57 and passed 5000 ODI runs but his dismissal triggered a batting collapse.

Oshada Fernando was the best of Sri Lanka's batsman and top-scored with 31.

Kusal Mendis was run-out after a 40-run stand with Oshada Fernando. Sri Lanka then went on to lose 7 for 46.

Lungi Ngidi finished with economical figures of 2 for 134 as South Africa ran away winners by 113 runs.