Anthony Castonzo says Andrew Luck is training “tirelessly” with kidney injury behind him

Despite missing the final seven games of the 2015 season, Indianapolis Colts owner Jim Irsay plans to give quarterback Andrew Luck a “shocking” contract this offseason. It would help for Luck to be healthy first before Irsay slides that contract in front of Luck to sign. Fortunately for the Colts, Luck seems to be progressing…