South Africa survived a nervous chase to beat Bangladesh by four wickets at Lord's, keeping their T20 World Cup semi-final hopes alive. The Proteas reached 118-6 with 4 balls to spare, but the victory exposed batting frailties that could hurt them later in the tournament.

Captain Laura Wolvaardt's dismissal first ball set the tone for a shaky innings. When Dane van Niekerk fell lbw for just three, South Africa languished at 59-3 at the halfway stage. Annerie Dercksen top-scored with 45 before falling in the 15th over, leaving the boundaries drying up as tension mounted.

Marizanne Kapp struck early with the day's first wicket, bowling Juairiya Ferdous. Despite Bangladesh's middle-order resistance, Sobhana Mostary's patient 42 and Nigar Sultana's unbeaten 32 only lifted the Tigers to 117-5. Nahida claimed 2-24 but couldn't prevent the loss.

South Africa's semi-final fate now rests on Australia's match against India. Should India stumble, the Proteas advance to face England - their conquerors in last year's 50-over World Cup semi-final - in what promises to be a compelling rematch.