Australian opener Usman Khawaja copped a blow to the head from Shamar Joseph as Australia registered a 10-wicket win over West Indies in Adelaide.
The left-hander suffered the blow when Australia were one run away from victory but he has been initially cleared of concussion and fractured jaw.
Khawaja was hit on the right side of his jaw after he lost sight of a short ball from the West Indies pacer. He was assessed by the doctor on field before retiring hurt.
According to Cricket Australia, he cleared an initial concussion test in the dressing room. His scans, later, also confirmed that there was no structural damage to his jaw.
Khawaja will need to pass another concussion test on Saturday in order to feature in the second Test in Brisbane, which begins on January 25.
Australia captain Pat Cummins also talked about Khawaja briefly after the victory.
"He seems okay," he said. "It's a little bit of a sore jaw. So yeah, [we'll] monitor it but he seems okay."
Earlier, Josh Hazlewood produced an inspired spell of seam bowling as Australia crushed the West Indies in the opening Test.
Bowling with almost metronomic precision, Hazlewood ended with 5-35 in the second innings after at one stage having figures of 4-2.
Leading by 95 runs in the first innings, Australia dismissed the West Indies Friday morning for 120. They then cruised to the winning target of 26 in under seven overs.
West Indies coach Andre Coley conceded inexperience had played a large part in the dramatic second innings collapse that saw them slump to 19-4.
"The learning curve has been pretty steep for some of them," Coley said.
"But if they were to sit back and some of the feedback has been, it hasn´t been tremendously difficult. It has been testing.
"I think the challenge has pretty much been the consistency of the bowlers, obviously a wealth of experience in that Australian bowling attack, so their ability to stay patient, and there were times our batters played quite well."