The Chiefs will be without Samisoni Taukei'aho for the Super Rugby Pacific final against the Blues after the All Blacks hooker left the pitch with an Achilles injury during his side's upset win over the Hurricanes.
Taukei'aho was replaced 22 minutes into the 30-19 victory in Wellington and the 26-year-old is also doubtful for New Zealand's three-match series against England, which begins in Dunedin on July 6.
"It looks like it's going to be pretty serious, which is unfortunate not just for us but for him and probably his All Blacks prospects for the immediate future," Chiefs coach Clayton McMillan told media.
The Chiefs also have doubts over Taukei'aho's replacement, Bradley Slater, who left the field before fulltime.
Taukei'aho's injury comes one week after fellow All Black Patrick Tuipultou was ruled out of the start of the international season with a knee injury sustained while playing for the Blues against the Fijian Drua.