Rubuta ci gaba don wannan sakin layi - Erden dan wasa ne na yau da kullun a cikin ƙungiyar 'yan wasan Turkiyya. Kwarewar sa ta farko ta kasa da kasa ta zo ne a gasar zakarun Turai ta U20 ta 2005 da aka gudanar a Moscow. Ya samu maki 10.4 da 8.0 a wasanni bakwai da ya buga wa Turkiyya. A Gasar Zakarun Turai ta U20 ta 2006, wanda aka gudanar a Izmir, Turkiyya, Erden ya taimaka ya jagoranci Turkiyya zuwa lambar azurfa, yana da maki 5.4 da 3.4 a cikin wasanni takwas. A wannan shekarar, ya sami gurbi a tawagar Turkiyya don Gasar Cin Kofin Duniya ta 2006 a Japan. Ya ba da gudummawar maki 2.2 da kuma tarawa 2.3 a wasa. A gasar zakarun Turai ta 2007
a Spain, Erden yana da maki 1.0 da 1.0 a cikin wasanninsa biyar.