Australia have marched into the semi-finals of the T20 World Cup with a six-wicket win over hosts South Africa, sparked by Tahlia McGrath's 33-ball 57 and Georgia Wareham's 2-18.
Ashleigh Gardner, who took her 50th T20I wicket earlier in the night, helped the defending champions round out their group-stage campaign undefeated with her unbeaten 29-ball 28.
