Carlos Alberto T??vez (born Carlos Alberto Mart??nez on 5 February 1984) is an Argentine professional footballer who plays as a forward for English club Manchester City. He has previously played for Boca Juniors, Corinthians, West Ham United and Manchester United. He transferred to Manchester City in the 2009ƒ??10 summer transfer window, becoming the first player to move between the two Manchester clubs since 1999.