Aug. 6, 2008

DE Brian Robison has a varicose vein in his left leg that likely needs surgery. What is not clear is how serious the issue is or how long Robison might be out. Robison, who is expected to be the third end, backing up Jared Allen on the right side primarily, spent Monday in the Twin Cities getting his leg looked at. Robison has had the vein issue since high school, but it recently flared up and caused him discomfort. Vikings officials say they are not sure how long Robison could be out, which could cause some problems in terms of depth. Robison also provided a nice, albeit sporadic pass rush as a rookie with 4½ sacks. In his place, Otis Grigsby, who is having a nice camp to date, has moved from the third-team left end, to Robison’s spot behind Allen.