The 49ers will be aiming to keep their three game-winning streak in Seattle alive as they face the Seahawks in their season opener on Sunday.

San Francisco has dominated this rivalry in recent years, turning Lumen Field from a house of horrors into a happy hunting ground.

The 49ers will need their stars to perform if they are to prevail in Seattle for a fourth year running, but role players can also have a substantial influence on results, and there are three in particular who could have a big day in the outcome in Week 1.

Marquez Valdes-Scantling

The 49ers signed Valdes-Scantling to the active roster in a move that, in the absence of Demarcus Robinson and Jacob Cowing and with Jordan Watkins doubtful, gives them something they would otherwise be lacking, a bonafide field stretcher.

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