South Africa are sweating on the fitness of powerful middle-order batter Heinrich Klaasen for their Champions Trophy Group B fixture against Australia on Tuesday as captain Temba Bavuma vowed not to take their injury-hit opponents lightly.

Temba Bavuma optimistic about South Africa's Champions Trophy chances despite concerns over Heinrich Klaasen's fitness for Australia clash.

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Ahead of the ICC Champions Trophy clash against Australia, South Africa skipper Temba Bavuma said that the fitness of wicketkeeper-batter Heinrich Klaasen is yet to be assessed and he is also taking part in the practice session.

Both teams made 300-plus totals in their opening games, so expect another run-fest on a flat surface in Rawalpindi