The Indianapolis Colts have officially picked up the $7.438 million fifth-year option for offensive tackle Anthony Castonzo.
Castonzo is now under contract through the 2015 season.
A 2011 first-round draft pick from Boston College, Castonzo has started every game the past two seasons.
He started a dozen games as a rookie.
The 6-foot-7, 315-pounder was selected 22nd overall in 2011.
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Aaron Wilson covers the Ravens for The Baltimore Sun
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