Mezue ahịrịokwu na-esonụ: A kpọrọ Cronin na ndị otu Ireland maka agba nke mbụ nke 2015 Six Nations Championship na 1 February 2015. Ọ si na bench pụọ megide Italy na 7 February 2015. Cronin merụrụ ahụ ikpere n'oge egwuregwu nke chọrọ obere ịwa ahụ. A kpọrọ ya na ndị otu Emerging Ireland squad maka
2015 World Rugby Tbilisi Cup na 19 Mee 2015. Cronin bidoro na mmeri 33 <unk> 7 megide Uruguay na 17 June 2015. Ọ malitekwara na mmeri 45<unk>12 megide Georgia na 21 June 2015, mmeri nke mere ka asọmpi ahụ maka Ireland na-apụta.