Robison suffered a pectoral injury while working out Thursday, Peter Schrager of FOX Sports reports. A torn pectoral would threaten Robison's Week 1 availability, while anything less would likely be a non-issue by the time training camp rolls around. The 32-year-old had just 4.5 sacks in 2014, after recording eight or more in each of the previous three seasons. Robison started 63 out of a possible 64 games the past four years, and he's slated to start across from Everson Griffen in 2015.