Yamba Asha João (born 31 July 1976) is an Angolan retired footballer who played as a defender.
Asha played for AS Aviação in his homeland and is a member of the Angola national team, collecting 58 caps by the end of 2009.
However, the left-back was excluded from their 2006 FIFA World Cup party, since he was banned by FIFA for nine months for failing a drugs test following a World Cup qualifier against Rwanda in October 2005.
He was recalled for an African Nations Cup qualifier against Swaziland in September 2006.
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