SS Marcell Harris
It looks like Harris will start again with Jaquiski Tartt officially ‘doubtful’ with a rib injury. Teams have gone right at Harris since he stepped into the starting strong safety role for Tartt. The results with Harris have been mixed, but Seattle has the personal to go right at the second-year sixth-round pick. They’ll use plenty of play action and look for tight end Jacob Hollister in the passing game to attack Harris. He has to stay disciplined on play action and ensure he’s communicating well in the secondary to limit big plays and blown coverages. He also has to have a strong game tackling against a run-heavy offense like Seattle. If Harris puts it all together, he could make a significant difference in a struggling 49ers secondary.