Anderson Silvas manager says that the middleweight champion will definitely not be retiring within the next 12 months.He made the statement after UFC middleweight champion Silva told a Brazilian television station he was thinking of quitting MMA in the coming year.Some have speculated that the decision was prompted by Dana Whites refusal to allow Silva leave to enter into a boxing match with Roy Jones Jr. Source:Anderson Silva NOT Retirng Next Year, says his Manager