Right-hander Jae Seo agreed to a one-year contract with the Tampa Bay Devil Rays on Wednesday. The 29-year-old, who avoided arbitration, was 1-8 with a 5.00 ERA in 17 games with the Devil Rays this season. He was obtained as part of the June 27 trade that sent catcher Toby Hall and pitcher Mark Hendrickson to the Los Angeles Dodgers.