The Pittsburgh Pirates added six players to their 40-man roster on Tuesday night, making them exempt from being selected in next month's Rule 5 Draft: left-hander Tyler Samaneigo, right-handers Brandan Bidois, Wilber Dotel, and Antwone Kelly, infielder Jack Brannigan, and outfielder Esmerlyn Valdez.

Right-handers Colin Holderman and Dauri Moreta were designated for assignment along with outfielders Alexander Canario and Ronny Simon. Infielder Cam Devanney was released so he could sign with the Hanshin Tigers of Japan's Nippon Professional Baseball.