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Bears OG Roberto Garza will undergo arthroscopic knee surgery and miss Sunday's game vs. the Seahawks, head coach Lovie Smith announced Wednesday.
It was learned earlier today that Chris Williams was moving to left guard, which is the position Garza has started at in every game this season. Williams, who missed the last three games with a hamstring injury, is expected to start at left guard against Seattle.
It's not known how long Garza will be out.