Rubuta ci gaba don wannan sakin layi - Ya zira kwallaye na farko a wasan da ya yi da Faransa a 43<unk>31 a Paris a gasar zakarun kasashe shida ta 2006
Ka yi haƙuri. O'Callaghan ya kasance wani ɓangare na ƙungiyar Ireland wanda ya ci gaba da lashe Triple Crowns a 2006 da 2007.