Australia all-rounder Marcus Stoinis, who stitched a 40-run partnership with Matthew Wade for sixth wicket against South Africa in T20 World Cup Super 12 match, said main thing for him was to stay as calm as he could. "For a Greek Australian, that's pretty hard," he added. Australia scored 121/5 in 19.4 overs after being 81/5 in 15.2 overs.