New Orleans Saints tight end Coby Fleener was placed on injured reserve Saturday after he suffered a concussion in Week 12, according to the Advocate's Nick Underhill. NFL Network's Ian Rapoport reported the Saints promoted tight end Garrett Griffin to the active roster to take Fleener's place. Fleener was healthy through the first 11 weeks of the season, but he was forced to leave the Saints' Week 12 loss to the Los Angeles Rams with the fifth concussion of his career, according to the Times-Picayune's Josh Katzenstein.