The Hurricanes and All Blacks hooker Dane Coles faces up to another five weeks on the sideline with an ongoing elbow injury.
Coles suffered the injury playing the Blues last month and has missed their last two Super Rugby matches.
Coach Chris Boyd says Coles was told by a surgeon that he has some ligament damage in the elbow and is another four to five weeks away from playing again.
Boyd says it is a setback for Coles, but you have to expect these things and it gives Motu Matu'u a further chance to stake his claim.
Matu'u started at hooker again this week against the Stormers, while Brayden Mitchell was in the reserves.