Pedzisa mutsara unotevera: O'Donnell akaiswa muganhu weIreland paU-18 uye U-20 makirasi. Akanga ari chikamu cheU-20 Grand Slam chikwata chakakunda muna 2007. Akagamuchira runhare rwake rwekutanga rwevakuru musi wa 21 Ndira 2013, paakanyorwa muIreland's
2013 Six Nations Championship kudzidzira chikwata. O'Donnell akaita kutanga kwake kweIreland Wolfhounds musi wa25 Ndira 2013, achitanga mumutambo wehushamwari neEngland Saxons. Akawedzerwa kuIrish Six Nations squad yemutambo wakanangana neScotland musi wa18 Kukadzi 2013.