Pim Verbeek, South Korea's head coach, added him into his squad for the qualification of the 2007 Asian Cup.
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Cha was noticed by coach Guus Hiddink when the national team played a practice match against Korea University.
Chama Cha Mapinduzi | Jose Cha Cha Jimenez | James 'Cha' Fitzpatrick | Yuan Cha | Theresa Hak Kyung Cha | I Ain't Cha Homey | Cha Tae-hyun | Victor Cha | Don't Cha | Chã das Caldeiras | Cha-Ching | Cha Cha Cha Township |