New Zealand won the toss and batted Saturday in the third one-day cricket worldwide against Pakistan at the University Oval.
If a result is achieved, a win would not only give them New Zealand the series but they would also equal their longest streak across all formats of 10 wins.
With Pakistan's top order decimated following a fiery spell from Kiwi paceman Trent Boult, the Men in Green were facing the ignominy of recording the lowest ever one-day global score as they teetered on a scarcely believable 32-7.
Although de Grandhomme has been named in the match-day 12, Williamson says it's yet to be decided if he'll replace one of New Zealand's spinning allrounders Mitchell Santner or Todd Astle.
At one stage, Pakistan were in danger of beating Zimbabwe's world-record low score of 35 but they were eight down when that milestone was avoided.
Any fan at a New Zealand limited overs match this summer who catches a six one-handed while wearing a promotional T-shirt is rewarded with £26,400 (NZ$50,000) in prize money. Their last win against them in New Zealand came in 2011 in Hamilton.
Boult carved through Pakistan's top-order in windy conditions, reducing them to 2-3 inside four overs.
While Man-of-the-Match Boult turned out to be the pick of the bowlers, Colin Munro and Lockie Ferguson contributed with two wickets apiece. Only Daniel Vettori's 5 for 7 against Bangladesh and Shane Bond's 6 for 19 against India have come at a lower average than Boult's. They looked alright until the score was 158/3. Their collective average of 17.10 is the second worst in any bilateral series with a minimum of 20 innings.