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Regardless of which player lines up at left tackle for Washington, Aldon Smith will have a chance to be a game changer in his second game back.
Quinton Dial says he has something to prove, and with Ian Williams and Glenn Dorsey out with injury, Sunday will be his chance to prove it.
The 49ers are three games behind the NFC West-leading Cardinals with six games to play. Matt Maiocco puts the scene into perspective.