As San Francisco 49ers offensive guard Alex Boone continues to hold out, NFL teams are contacting the NFC West club about a potential trade.

Boone wants a new contract.

Boone is under contract for the next two seasons.

Boone is now one of the top guards in the league.

The 49ers are not expected to give in to Boone's contract demands. They are starting Joe Looney in his place.

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Aaron Wilson covers the Ravens for The Baltimore Sun