Chrsitchurch - Crusaders No 8 Kieran Read will miss Saturday's Super Rugby playoff game against the Vodacom Bulls because of a rib injury.
Read missed the Crusaders' final regular season match against the Western Force with the same injury last weekend and has yet to recover full fitness.
The Crusaders have made three changes to their line-up: Wyatt Crockett was chosen at loosehead prop ahead of Ben Franks and Sam Whitelock at lock ahead of Tom Donnelly. Franks and Donnelly both move to the reserves bench.
Adam Whitelock moves from centre to wing, allowing Robbie Fruean to return in midfield.
The winner of the match between the seven-time champion Crusaders and three-time champion Bulls will progress to the tournament semi-finals.
15 Israel Dagg, 14 Adam Whitelock, 13 Robbie Fruean, 12 Ryan Crotty, 11 Zac Guildford, 10 Dan Carter, 9 Andy Ellis, 8 Richie McCaw (captain), 7 Matt Todd, 6 George Whitelock, 5 Samuel Whitelock, 4 Luke Romano, 3 Owen Franks, 2 Corey Flynn, 1 Wyatt Crockett
Substitutes: 16 Quentin MacDonald, 17 Ben Franks, 18 Tom Donnelly, 19 Luke Whitelock, 20 Willi Heinz, 21 Tom Taylor, 22 Sean Maitland
15 Zane Kirchner, 14 Akona Ndungane, 13 JJ Engelbrecht, 12 Wynand Olivier, 11 Bjorn Basson, 10 Morne Steyn, 9 Francois Hougaard, 8 Pierre Spies (captain), 7 Dewald Potgieter, 6 Jacques Potgieter, 5 Juandre Kruger, 4 Flip van der Merwe, 3 Werner Kruger, 2 Chiliboy Ralepelle, 1 Dean Greyling
Substitutes: 16 Willie Wepener, 17 Frik Kirsten, 18 Wilhelm Steenkamp, 19 Deon Stegmann, 20 Jano Vermaak, 21 Louis Fouche, 22 Francois Venter