'I never thought I could be world champion'To play this video you need to enable JavaScript in your browser.This video can not be played'I never thought I could be world champion'CloseMore on this story. SubsectionNorthern IrelandPublished3 days agoShareclose panelShare pageCopy linkAbout sharingRelated topicsNorthern IrelandFollow Northern Irelandclose panelYou are now following Northern IrelandUpdates from your News topics will appear in My News and in a collection on the News homepage.Read description