Canterbury are down to their third first five option, but there isn't an ounce of worry in the ITM Cup squad.

With Colin Slade back in the All Blacks camp, Tyler Bleyendaal and Tom Taylor still out injured, Richie Mo'unga will start at number 10 against Otago this evening in Dunedin.

Halfback Willi Heinz says he has full faith in Mo'unga.

He says he's played with him at club level and knows just how talented he is at first five.

Kick off is at 7:35.