Steve Smith has been taken to hospital for a "precautionary" X-ray after taking a fierce Jofra Archer delivery to his arm in the second Ashes Test at Lord's on Saturday.
Smith's arm swelled immediately but he opted to continue with a guard before being forced to retire hurt after a subsequent Archer ball struck his neck.
Smith hit the deck after the second blow and remained on the floor for an extended period before stumbling to his feet. He left the field with the team doctor but later returned to the field after passing a medical assessment.
Remarkably, he hit his first two balls after returning for four, clubbing Woakes to wide long-on then easing into a backfoot cover drive. He was eight short of what would have been a brilliant century when he completely misread a Chris Woakes delivery, a highly unusual error, and was plumb lbw.
It is understood Smith has now been taken to hospital, though this is considered a precautionary measure and relates to the arm injury rather than the later blow to his head.
