Bloemfontein Celtic will be without their star striker, Gabadinho Mhango, as well as new signing, Vuyisile Wana, for their cup game against Mamelodi Sundowns this week.
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The Brazilians and Siwelele will be playing in a crucial MTN8 quarter-final game at the Lucas Moripe Stadium on Wednesday.
Mhango scored two goals in their 5-0 drubbing of Sundowns when the two teams last played, during a league game at the same venue in April.
The Malawian has been ruled out for tomorrow's game, owing to an injury.
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Mhango and Wana are the only two players from Clinton Larsen's side that will be missing the game against Sundowns because of injuries.