[19] On 18 February 2024, Matt Henry and Tim Seifert were ruled out of T20I series due to injuries,[20] with Ben Sears and Will Young were named their respective replacements.
[23] Jacob Duffy and Tim Seifert, who was ruled out earlier,[24] passed a fitness test, added to the New Zealand's squad.
[25] On 17 February 2024, Aaron Hardie replaced injured Marcus Stoinis in the Australia's T20I squad.
[26] However, the following day, Hardie was ruled out due to an injury,[27] and replaced by Spencer Johnson in Australia's T20I squad.
[30] On 28 February 2024, Devon Conway was ruled out of the first Test due to left thumb injury.