Zimbabwe opening batsman Brian Bennett was ruled out of the rest of the first test against South Africa on Sunday after being diagnosed with mild concussion.
Bennett, who scored 139 on his previous test appearance against England in Nottingham last month, had scored 19 off 24 balls on the second day of the match when he attempted a hook against fast bowler Kwena Maphaka and was struck on the helmet.
After lengthy treatment on the field the 21-year-old resumed batting and faced three more deliveries in the next over from Codi Yusuf before walking off the field.
Zimbabwe Cricket announced during the lunch break that Bennett had been ruled out of the match and in keeping with concussion protocols would be replaced by Prince Masvaure.