"I'm not stressed about it," said Johnson.
"[Being hit] is something I've expected throughout this tournament with the way the game is.
"It will be interesting to see when there's a bit more pressure on how guys play the game.
"Coming into a quarter-final we'll see if guys are still prepared to play that type of cricket.
"I'm ready for whatever's going to come at me."
Johnson's efforts so far with nine wickets at 22.6 is far from shabby, but it's now that he plans to answer the call to arms.
"This is what we're playing for," he said. "This is why - we want to win the World Cup and that's our goal.
"We're one step closer now so we've just got to keep taking it one step at a time."
The rise of Starc has put Johnson in the unfamiliar position of playing second fiddle.
The 25-year-old fellow lefthander Starc has been an unstoppable force this World Cup with a tournament-high 16 wickets at an unbelievable average of 8.5.
But he hasn't come down in the last shower.
Starc's career average of 18.62 is the best of any one-day bowler in history to have delivered more than 1000 balls.
Johnson has flirted with retirement discussion at stages this summer, but it's his own performance and not the rise of one of his teammates that will dictate his future.
In fact, Johnson is more than happy to ride shotgun to Starc in the knock-out matches.
"I'm not really sure at the moment [about my future]," said Johnson. "I've been talking to a couple of boys, it always comes up in the conversation.
"I just want to play and if my body can hold up that's good. But once I'm not performing to how I want to, I guess I'll have to think about [dropping] one of the formats.
"I want to be greedy and play as much as I can.
"I feel like I'm one of those bowlers that the more I bowl, the better I feel with rhythm.
"It's very important to play my role in the team. I've really enjoyed being a first-change or second-change bowler throughout this tournament - I think it's suited the team [to allow] Starcy to use that new ball and swing it around."
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- additional reporting Sydney