A third outside back with an ankle problem, Sosene Anesi, was not considered for selection.

Foster said the Chiefs were determined to build on their defeat of the Bulls in Rotorua in the last round.

"This week is a local Kiwi derby and these are usually tough physical games," he said.

"It's pretty important for us to build on the momentum we got from last week's win over the Bulls and deliver another quality performance."

Foster said the challenge remained for his players to maintain their focus up front, while making sure they continued to grow in confidence.

Chiefs: Mils Muliaina (captain), Lelia Masaga, Richard Kahui, Callum Bruce, Sitiveni Sivivatu, Stephen Donald, Brendon Leonard, Sione Lauaki, Tanerau Latimer, Liam Messam, Kevin O'Neill, Toby Lynn, Ben Castle, Tom Willis, Simms Davison.

Reserves: Aled de Malmanche, Ben May, Jay Williams, Faifili Levave, David Bason, Dwayne Sweeney, Viliame Waqaseduadua.