The Crusaders have been forced into a late change ahead of Saturday's Super Rugby hit-out against the Stormers in Cape Town.
Full-back Israel Dagg has a tight hamstring and has been withdrawn as a precaution.
Tom Marshall has been shifted to the number 15 jersey, with Zac Guildford coming onto the right wing.
Uncapped flanker Shane Christie moves onto the bench.
Crusaders (revised): 15 Tom Marshall, 14 Zac Guildford, 13 Robbie Fruean, 12 Ryan Crotty, 11 Johnny McNicholl, 10 Tyler Bleyendaal, 9 Willi Heinz, 8 Luke Whitelock, 7 Matt Todd, 6 George Whitelock (c), 5 Samuel Whitelock, 4 Luke Romano, 3 Owen Franks, 2 Corey Flynn, 1 Wyatt Crockett.
Replacements: 16 Ben Funnell, 17 Joe Moody, 18 Dominic Bird, 19 Jordan Taufua, 20 Andy Ellis, 21 Adam Whitelock, 22 Shane Christie.