This one's not for the faint-hearted.
Australian batsman Steve Smith's neck was on the receiving end of a short ball from England bowler Jofra Archer. The batsman's innings was paused on 80 when he was struck by the ball which reached a speed of 92 mph.
Smith was taken off for medical assessments, returning to the crease 40 minutes after have passed concussion protocol. This is the first Ashes series where concussion substitutions are allowed.
When he returned to the crease, Smith was clearly still shaken. Earlier on in the innings, Archer struck Smith on his arm which required medical attention. Smith was still able to notch another 12 runs before being called LBW on a ball from Chris Woakes. Smith elected to review the decision, and subsequently walked when the umpire's verdict was upheld.
The Australian batsman, who has received a hostile reception throughout this Ashes series, was applauded off the field and Lord's.
Smith was then taken to hospital for precautionary x-rays on his left arm, and did not take to the field as England began their second innings.
You can watch the Smith being struck in the neck below:
Smith is sent tumbling to the turf as he's caught on the chin by a short Archer delivery and retires on 80.
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