O'Sullivan and a second round pick in the 2005 NFL Draft were traded to the Green Bay Packers for Mike McKenzie on October 4, 2004. After the trade, O'Sullivan was inactive for 11 games as the third quarterback.
O'Sullivan was traded to the Green Bay Packers in exchange for Mike McKenzie and a second-round draft pick from the 2005 NFL Draft on October 4, 2004.  This trade led to O'Sullivan being inactive for eleven games as the third quarterback.