Marks tore his right triceps at Baltimore on Sunday. He missed the first five games of the season while recovering from knee surgery, so he'll end up missing 12 games in 2015. Sample played in four games this season, including two starts. He was inactive the past five games.
Greene played the first two games, but missed the past seven while recovering from a torn ligament in his left thumb. Loston spent seven weeks on the practice squad.
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