The Bucs say LB Angelo Crowell will miss the season with a torn biceps muscle.
The seventh-year pro was hurt during Saturday night's preseason victory at Jacksonville. The former Buffalo defensive captain signed with the Bucs as a free agent after sitting out all of 2008 because of a knee injury.
Crowell was slowed much of training camp by a sore hamstring. Third-year pro Quincy Black becomes the likely starter at strongside linebacker.
The 28-year-old spent six seasons in Buffalo after entering the NFL as a third-round draft pick in 2003. He had his best season in 2007, leading the Bills with 140 tackles, two sacks and one interception.