Mezue ahịrịokwu na-esonụ: N'egwuregwu mmeghe nke Ireland nke 2004 Six Nations Championship, O'Connell bụ onyeisi ndị otu na enweghị Brian O'Driscoll. Ọ gwakwara na egwuregwu megide Scotland na 27 Machị 2004, nke Ireland meriri Triple Crown mbụ ha kemgbe afọ iri na itoolu. O'Connell nwetakwara ọlaọcha n'ihu klọb mgbe Munster meriri ikpeazụ ikpeazụ nke Celtic Cup, meriri Llanelli Scarlets 27 <unk> 16 na Lansdowne Road na Mee 14, 2005. O sokwa n'otu ndị otu Ireland meriri n'asọmpi Triple Crown n'asọmpi
2006 Six Nations Championship, na-egwu egwu na mmeri 24-28 na England iji jide okpueze ahụ. O nyere goolu nke ikpeazụ na Old Lansdowne Road tupu e bibie ya ma wughachi ya dịka Aviva Stadium, na mmeri 61-17 megide Pacific Islanders.