Afful, who plays for MLS side Columbus Crew, has pulled out of the select band of players because of a foot injury.
The setback denied him a starting role in last Friday's 1-1 draw with the Red Devils at the Baba Yara Stadium in Kumasi.
He came on as a second half substitute and seems to have aggravated the injury.
Swansea City striker Ayew missed Tuesday's workout at the Accra Sports Stadium citing a stomach upset.
Already, captain Asamoah Gyan and his deputy Andre Ayew have omitted themselves due to injuries sustained in the corresponding fixture. Read Full Story

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