Loosie Tanerau Latimer has been withdrawn from the Chiefs' starting line-up for tonight's Super Rugby match against the Stormers in Hamilton.
Latimer, who had just returned from injury, suffered a knock to his ankle at training on Thursday.
Chiefs' wider training group member and Counties-Manukau representative Taiasina Tuifua will make his debut in the number six jersey, while Liam Messam moves onto the openside, with Sam Cane remaining in the reserves.