Pedzisa mutsara unotevera: Diamantidis aiva nhengo yechikwata chevakuru chenyika yeGreece chakakwikwidza mumitambo yeOlympic yeZhizha ya2004 kuAthens. Akasarudzwawo kuti atambe muGreece's senior national team ye
Mitambo yeOlympic yeZhizha ya2008 muBeijing. Greece yakapedza iri pachinzvimbo chechishanu mumakwikwi ese ari maviri, ichirasikirwa kaviri neArgentina mumakwikwi emakwikwi ekupedzisira.