Amy K. Nelson of ESPN.com reports that Logan Morrison has filed a grievance against the Marlins in regards to his August demotion. According to Nelson, Morrison argues that he was disciplined without "just cause." The Marlins surprised many around baseball with their decision and while they argued that his demotion was performance-related, he returned to the majors as soon as he was eligible after batting just .167 (4-for-24) with one home run and five RBI at Triple-A New Orleans. It remains to be seen whether he will be vindicated, but this certainly won't help his apparent crumbling relationship with the organization.