Johnson, 32, who destroyed England in Australia's 5-0 Ashes sweep at home last southern summer, left allrounder Ryan McLaren with a hairline fracture in his right forearm on Tuesday.
Johnson's lifting delivery in Australia's ODI victory in Harare -- Zimbabwe -- struck the left-hander squarely on the arm but, astonishingly, McLaren didn't even flinch.
"Ryan was taken for X-rays after complaining of severe pain following a blow to his right forearm," South African team manager, Dr Mohammed Moosaje said.
It was the second time in six months that a Johnson bowl has resulted in McLaren having to see medics.
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In February's first Test against the Australians at Centurion, McLaren felt Johnson's wrath when he received a menacing blow to the side of his helmet.
The delivery left McLaren bleeding from the ear and the 31-year-old was admitted to hospital the next day and played no further part in the series.
Left-armer Johnson was one of the stars during the Ashes sweep, with 37 wickets at 13.97, but he was also the subject of a sledging controversy over a "broken arm" threat.