South African team will be without Temba Bavuma for the remainder of the tour of Sri Lanka after the Proteas white-ball captain broke his thumb on his right hand during the ODI series opener.

The incident took place on Wednesday when Bavuma copped a direct blow to his thumb during the 26th over of play. He was attempting to avoid a fielder's throw-in and was struck on the right thumb. Bavuma subsequently retired hurt two overs later due to "persistent discomfort", said CSA statement.

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Left-arm spinner Keshav Maharaj will take over the captaincy for the remainder of the ODI series, while a captain for the subsequent three-match T20I series is yet to be named by the selection panel.

Further scans on Bavuma's thumb 'indicated a fracture' and the 31-year-old was advised to fly back home as soon as possible to consult a specialist.

"The timeline for his return to action will be determined post doctor consultations", CSA added.

South Africa lost the first ODI by 14 runs. The second match is scheduled for Saturday, with the final game on Tuesday, after which the teams will play three T20Is.

(Cricbuzz inputs)