The 31-year-old later admitted that everything his agent said was true and that he would clarify his future after the World Cup.
"I've been playing with the guy Toure for years and I've always thought he was OK," Silva is quoted as saying by ESPN.
"So I don't understand why anyone would necessarily think he was unhappy. He's always seemed fine to me."
Toure scored 24 goals last season to help Manchester City win the Premier League title.