
Australia batter Steve Smith is undergoing concussion assessment after being struck on the helmet by an Anrich Nortje bouncer during the first Test against South Africa in Durban.
Smith was cleared to continue his four-ball innings initially but did not take the field for the fourth innings, awaiting medical clearance for the fifth day.
Under Cricket Australia policy, a concussion diagnosis requires a minimum 24-hour stand-down period, potentially impacting his availability for the upcoming second Test in Gqeberha.