South Africa's midfielder Lerato Chabangu (Photo:AP)
Dikgacoi, the team's midfield enforcer, has a recurrence of a knee injury and Chabangu suffered a groin strain after coming on for Dikgacoi when South Africa started the tournament with a nervy 0-0 draw against the Cape Verde Islands on Saturday.
"It's a blow to any team when you lose players in a tournament like this," Igesund told reporters.
Midfielder Dean Furman is likely to start South Africa's second Group A game against the Angolans in Durban.
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