The 36-year-old's selection as a "gold" pick for the Adelaide Strikers in Sunday's BBL draft presented a conflict with his central contract with New Zealand Cricket (NZC), which ran to next July.
South Africa lost two wickets after tea but extended their lead over New Zealand to 211 runs by the close of Day 3 to leave the second Test delicately poised, in Christchurch, on Sunday.
De Grandhomme (60 off 47 balls) played a crucial role in New Zealand's four-wicket victory over South Africa in Birmingham on Wednesday.
Half centuries from Colin de Grandhomme and B J Watling gave New Zealand a first-innings lead of 138 against Sri Lanka on the fourth day of the second and final Test in Colombo on Sunday.
Batsman Neil Broom has also been offered a contract after he was recalled to the national side following a lengthy absence to replace Ross Taylor while he recovered from eye surgery.
The player draft for the much-awaited Global T20 Canada 2023 was held in a hybrid-form in Mumbai.
The 31-year-old Williamson also sat out the two-Test home series against Bangladesh last month due to the niggling elbow issue.
Trent Boult and Colin de Grandhomme made themselves unavailable for selection due to the prospect of further time in bio-secure bubbles and Managed Isolation.
Kane Williamson will miss the second Test against England after testing positive for COVID
Skipper Williamson cleared to play; spinner Patel included in 15-man squad
Jacob Duffy, Blair Tickner, Rachin Ravindra and Hamish Rutherford were released from the initial 20 player squad.
Images from Day 1 of the first Test between England and New Zealand at Lord's on Thursday, June 2, 2022.
Srinivas Bhogle and Purnendu Maji present Rediff.com's Most Valuable Player Index after 37 World Cup 2023 games.
Latham, De Grandhomme lead NZ to series sweep of India
South Africa turned the tables on New Zealand with a 198-run victory in the second Test in Christchurch on Tuesday, crushing the hosts' hopes of a breakthrough series win over the Proteas.
All-rounder Colin de Grandhomme struck a belligerent half-century to steady New Zealand in the second Test on Saturday after South Africa's seamers torched the home side's top order during a see-sawing Day 2 in Christchurch.
Cricketing landscape is changing fast, need to strike balance: Williamson
New Zealand Cricket (NZC) said on Tuesday all of its home-based players heading to England for a two-match Test series and the World Test Championship final have received their first dose of a COVID-19 vaccine.
Chris Jordan's all-around brilliance could not prevent New Zealand from securing a series-levelling 21-run victory over England in the second Twenty20 International of the five-match series on Sunday.
Boult, De Grandhomme cleared to travel to Perth for first Test against Australia
New Zealand all-rounder Colin de Grandhomme changed the script completely with a final over assault that enabled Royal Challengers Bangalore put up a healthy total against Mumbai Indians.
IMAGES from Day 3 of the opening Test between England and New Zealand at Lord's on Saturday.
Captain Dimuth Karunaratne continued his rich vein of form to remain unbeaten on 49 with Angelo Mathews yet to score as only 36.3 overs of play were possible due to rain and bad light.
New Zealand beat Sri Lanka by five wickets in the first T20I of the three-match series in Pallekele.
Colin de Grandhomme and BJ Watling delivered an 87-run partnership to help New Zealand avoid being forced to follow on as the hosts reached 123 for five at tea on the second day of the second test against England.
Williamson's elbow injury kept him out of a Test match in India in December and home series against South Africa and Bangladesh.
'There's no secret we're right in the hunt for the World Test Championship final following our two-nil win over India and having Trent and Kane fully fit and focussed for the upcoming series will be crucial.'
Mayank Agarwal scored his fourth Test half-century as India inched to 78-2 at tea on the third day of Trent Boult followed up his counter-attacking cameo innings of 38 to take three wickets, including that of Virat Kohli, to put New Zealand on top against India at the end of the third day of the first test on Sunday. Trent Boult followed up his counter-attacking cameo innings of 38 to take three wickets, including that of Virat Kohli, to put New Zealand on top against India at the end of the third day of the first test on Sunday. The visitors, who had not lost any of their seven previous International Cricket Council World Test Championship matches, were 144-4 at the close of play at the Basin Reserve, still 39 runs behind and staring at their potential first defeat.
Tom Latham led New Zealand out on the field in Sydney on Friday in the absence of unwell Kane Williamson. Australia won the toss and decided to bat first. IMAGES from Day 1 of the 3rd Test between Australia and New Zealand in Sydney on Friday
Captain Kane Williamson struck a composed unbeaten century as New Zealand edged past South Africa by four wickets in a thrilling last-over finish.
Australia's Marnus Labuschange struck another half century to pile on the runs and the misery over New Zealand on Day 3 of the day-night Test in Perth on Saturday. Earlier, Starc picked a five-wicket haul.
All-rounder Colin de Grandhomme took six for 41 in the best haul for a New Zealand cricketer on debut as the hosts dismissed Pakistan for 133 before tea on the second day of the first test at Hagley Oval in Christchurch on Friday. The 30-year-old seamer, a surprise selection in the squad, also became the eighth New Zealander to take a five-wicket haul on debut. New Zealand openers Tom Latham and Jeet Raval, who is also on debut, will begin New Zealand's reply after tea was taken early.
Images from the World Cup match between New Zealand and Pakistan, at Birmingham, on Wednesday.
Injuries to frontline fast bowlers have forced New Zealand to opt for fresh blood in their pace attack for the three-match ODI series against India starting February 5 in Hamilton. Kyle Jamieson could be in for a potential debut, while Scott Kuggeleijn and Hamish Bennett return to the squad after a long absence. Injury has meant the likes of Trent Boult, Lockie Ferguson and Matt Henry are unavailable for the series.
The squad will then be trimmed to 15 for the ICC World Test Championship final against India at the Ageas Bowl in Southampton starting on June 18, as per ICC regulations.
South Africa were 123 for four in the third Test against New Zealand at Seddon Park in Hamilton on Saturday before rain forced the abandonment of the first day's play after 41 overs.
England finished day two on 111-2 and trail New Zealand by 267 runs in the first innings of the first Test after Devon Conway's double ton took the game away from the home side on Thursday.
IMAGES from Day 1 of the 2nd Test played between England and New Zealand at Trent Bridge on Friday.
New Zealand last toured Pakistan in 2003 for a white-ball series and since then have avoided touring the country because of security reasons.
