Days after fracturing South Africa all rounder Ryan McLaren's right arm, the Australian quick has ramped up the mind games after the Proteas saw off Zimbabwe yesterday to confirm their place in the final at Harare Sports Club.
Johnson claimed that Australia can easily forecast South Africa's game plan, and suggested his own side are more versatile in the way that they go about their cricket.
"We know what they're like and they're pretty structured in their ways," he said. "They like to play a certain way and they do it most times. It gets brought up in most meetings that we have, that they have that structure.
There is some truth in Johnson's assessment.
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Australia have a middle order packed with power hitters such as Glenn Maxwell and Mitchell Marsh, who have twice seen them to scores above 325 in a tournament characterised by slow, dry pitches.
Meanwhile, South Africa's batsman tend to be more orthodox as they rely on their inherent quality - as they did when AB de Villiers and Faf du Plessis scored hundreds to chase a target of 328 in the first meeting between the two sides last week.
While Australia appear to have settled on their best team since that defeat, with Steve Smith returning to provide a second spin option and Kane Richardson preferred to James Faulkner, McLaren's departure has forced South Africa to rebalance their side.