Jackson is being evaluated Tuesday for a knee injury suffered in last Monday's win over Carolina, Rick Stroud of the Tampa Bay Times reports.

EDGE Analysis

Jackson's injury went unreported during Tampa Bay's bye week, with the team perhaps hoping some rest would do the trick. Despite starting every game and playing the vast majority of snaps, Jackson hasn't topped four catches or 44 receiving yards in any contest this season. If he isn't ready for Sunday's game against San Francisco, the Bucs could turn to Adam Humphries or Russell Shepard, though the biggest impact might be an uptick in targets for No. 1 receiver Mike Evans.