Archer has been struggling with an elbow injury and the paceman is a doubt for the match in Cape Town, which starts on Friday.
Spinner Leach is not ready for a recall after being badly affected by the sickness bug that has swept through the camp and fast bowler Wood is still recovering from side and knee problems.
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Captain Joe Root said when asked about Archer’s availability: “It will be another late call.
“Not knowing exactly how Jofra is might change how we balance the side up.
“I think it’s a recurring injury and he’s had it before. He did pull up very sore [on Wednesday] and seemed to be in a little pain.”
The Proteas lead the four-match series 1-0 after securing a 109-run victory at Centurion.
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