Denver has offered left tackle and former Boise State standout Ryan Clady a five-year, $50 million contract extension, with about $28 million guaranteed, according to media reports Monday.

The $10 million a year average would make Clady one of the league’s five highest-paid offensive tackles, the Denver Post reported.

He is scheduled to make $3.5 million this season, which ranks 31st among NFL offensive tackles, the newspaper reported. The Denver Post also reported, using an NFL source, that Clady and his agent, Pat Dye, are seeking a deal that would slightly exceed the contract of Cleveland Browns left tackle Joe Thomas, who received an extension last summer that averages $11.5 million a year, according to the NFL Players Association.

Clady, a first-round pick in 2008, is eligible for free agency after the 2012-13 season.