Concussion protocols have ruled David Warner out of the balance of the second Test against India in Delhi to be replaced by Matthew Renshaw.
Warner was struck twice in the space of a few overs by Mohammed Shami early on day one, once on the elbow and then later up under the chin.
It has since been revealed the initial blow also caused a fracture.
FOLLOW LIVE: India v Australia second Test day two
READ MORE: Tiger’s unlikely ally in ‘funny’ tampon scandal
READ MORE: Captain axed in historic Proteas shake-up
Warner made 15 before Shami eventually had him caught behind.
He did not take to the field as Australia bowled nine overs at the Indian openers late in the day.
Speaking after play, Usman Khawaja flagged the possibility of the substitution saying Warner was “a little bit weary”.
“The medical staff will have to assess (Warner) tomorrow … he got a knock to the arm and then the head,” he said.
“I think the head made him a little bit weary at the moment, and couldn’t come out to field.
“The staff will have to figure out what happens from here.”
In a further twist, it has been revealed the Shami blow inflicted a small fracture on Warner’s elbow.
“David Warner has a small and undisplaced hairline fracture in his arm,” cricket reporter Andrew Wu tweeted on Saturday afternoon.
“It gives you an idea of the guts he showed to bat on yesterday. He’s as tough as they come.”
Warner being replaced by Renshaw is a slightly ironic twist – there were calls for Warner to be dropped and for Renshaw to open, which would have unlatched the middle order and allowed for Travis Head to return to the side.
Renshaw has opened for Australia previously, but his order in the lineup has not yet been confirmed.
Warner is now in a race against time to be fit for the relocated third Test, which starts on March 1.
For a daily dose of the best of the breaking news and exclusive content from Wide World of Sports, subscribe to our newsletter by clicking here!