Whakakīhia te rerenga e whai ake nei: Kua oti a O'Donnell te tohu mo Ireland i nga reanga U-18 me U-20. I uru ia ki te kapa toa U-20 Grand Slam i te tau 2007. I riro i a ia tana piiraa matua tuatahi i te 21 o Hanuere 2013, i te wa i whakauruhia ai ia ki roto i te roopu o Ireland.
Ko te kapa whakangungu o te 2013 Six Nations Championship. I tiimata a O'Donnell mo nga Wolfhounds o Ireland i te 25 o Hanuere 2013, i tiimata i te whakahoahoa ki a Ingarangi Saxons. I tapirihia ia ki te kapa Six Nations o Ireland mo te tukinga ki a Scotland i te 18 o Hui-tanguru 2013.