The Marlins have shifted outfielder Chris Coghlan to the disabled list, according to a source. The team announced Friday they had demoted Coghlan to Triple-A New Orleans, but in the wake of the news he admitted to a knee issue. Coghlan, the 2009 NL Rookie of the Year, was hitting .230 with five homers and 22 RBIs in 65 games this season.