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The Seattle Seahawks are looking to a divisional rival for potential depth for their offensive line.

According to separate reports from Eric Branch of the San Francisco Chronicle and Josh Weinfuss of ESPN.com, the Seahawks are interested in former Cardinals offensive linemen Ted Larsen and Bradley Sowell.

Larsen (pictured) is scheduled to visit Seattle on Friday. Sowell has scheduled a visit as well.

The Seahawks watched right guard J.R. Sweezy sign with the Tampa Bay Buccaneers on Wednesday. Left tackle Russell Okung remains a free agent and is visiting the New York Giants and Detroit Lions on Friday.

Even with Sweezy and Okung, the Seahawks offensive line struggled mightily early last season. Seattle has had to be frugal on the offensive line with big contracts given out to other positions, but upgrading the personnel on the line appeared to be a priority for the Seahawks this offseason.

Whether Larsen or Sowell would provide that upgrade is debatable. Neither lineman is particularly outstanding. However, Seattle needs depth in addition to improvement to their starting unit.