Whakakihia te rerenga e whai ake nei: I timata a Johnston mo Munster i te 5 o Mahuru 2015, i te timatanga o te kēmu o te
2015<unk>16 Pro12 ki a Benetton. I te marama o Hanuere 2016, i panuitia kua hainatia e Johnston tetahi kirimana me Munster ka kite ia i a ia e hono ana ki te roopu matua mai i te waa 2016-17, i te tuatahi i runga i te kirimana whanaketanga, ana, mai i te 2017-18, i runga i te kirimana katoa. I whakaingoatia a Johnston mo te Tohu Kaitakaro o te Tau 2016 o te Whare Wananga o Munster.