The Red Sox have granted veteran right-hander Kevin Millwood his release. Millwood started 13 games for Triple-A Pawtucket and was never called up to the Major Leagues. He was signed by the Red Sox as a minor league free agent on May 19 and joined Pawtucket on June 1. Millwood could have opted out of his contract on June 20 when he hadn't been called up to the big league team.