We just informed you of the Bears' interest in three of the top offensive tackles in free agency (which begins today at 4 PM ET), and now comes news that they're showing interest in the top guard available in free agency.

The Chicago Sun-Times' Adam Jahns reports that the Bears are interested in Buffalo Bills free agent guard Andy Levitre:

A source said the Bears are interested in Levitre, who has started every game for the Bills since being drafted with the 51st overall pick in 2009. He's considered the best available guard.

Pro Football Focus ranked Levitre as the ninth-best guard in 2012, and No. 1 in pass protection, an area where the Bears' struggles have been very well-documented. He's also started every game for the Bills since they drafted him in the 2nd round of the 2009 NFL Draft, and will be just 27 in May.

Add all of that up, and yes, Levitre be expensive (Rotoworld's Evan Silva predicted Levitre would six years, $48 million).

The Bears may only be able to afford one of these high-level offensive linemen they're showing interest in, but it's just nice to see they're even showing serious interest in these players. Phil Emery clearly understands how much the Bears need to upgrade their offensive line.

UPDATE: Andy Levitre signed a five-year $39 million deal with the Titans. Look for the Bears to show interest in the second-tier guards, though. It sounds like they're the frontrunners for Jets guard Brandon Moore.

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