Hamilton: New Zealand batting maestro Kane Williamson was non-committal on Friday about his availability for the Black Caps' remaining Tests this month with his partner Sarah Raheem due to give birth to their first child.
"It's sort of wait and see," Williamson said to questions about whether he would take paternity leave.
Williamson hit a career-best 251 on Friday to contribute nearly half of New Zealand's 519 for seven declared in the first innings of the opening Test against the West Indies in Hamilton.
The talismanic captain is seen as an integral part of the Black Caps with the second Test against the West Indies due to start on 11 December and the first of two Tests against Pakistan to start on 26 December.
Sweeping all four is crucial to New Zealand's hopes of making the final of the World Test championship and Williamson said the baby is due "mid to late December".
"It's a very exciting time in anybody's life, and certainly in mine, so we're just going to cross that bridge when we can and see how things unfold," he said, playing a straight bat when asked about his availability.
"It's very difficult to pre-plan anyway these sorts of things."
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Kane Williamson scored 238, the fourth double-century of his career and his second of the summer, as New Zealand declared with a 362-run lead over Pakistan on the third day of the second Test.
Click here to follow LIVE scorecard of the second Test between New Zealand and Pakistan at Christchurch.
Paceman Kyle Jamieson continued an extraordinary start to his Test career, taking 6-48 as New Zealand beat Pakistan by an innings and 176 runs in the second Test Wednesday to claim their fourth win in four Tests at home this summer.