Hawke's Bay-born international bowls representative Mandy Boyd has withdrawn from the New Zealand women's team because of personal reasons.
That rules out the 24-year-old preschool teacher from the Bowls World Championship in Christchurch in November.
The former Bowls Taradale player was named in April to skip the Blackjacks triples and fours at the champs.
Her sister, Angela, 29, also a preschool teacher at Best Start in Christchurch, remains in the Black Jacks women's equation as a lead in the pairs and fours.
Kirsten Edwards (nee Griffin), from Nelson, replaces Commonwealth Games bronze medallist Boyd for the world championship.