CAPE TOWN, South Africa – Zimbabwe on Friday faced a challenging start to their Netball World Cup campaign, as they encountered a dominant Australian side that secured an 86-30 victory in the tournament opener. The Gems fought hard, but the Diamonds’ coach, Stacey Marinkovich, confidently rotated all players on court. Australia’s attack end was on song, with Cara Koenen finishing 29 out of 30…