The Rays announced several roster moves on Thursday.

The team optioned pitchers Nathan Karns, Kirby Yates, C.J. Riefenhauser and Jeff Beliveau, infielders Vince Belnome and Hak-Ju Lee, and outfielder Kevin Kiermaier to minor-league camp. The team also re-assigned outfielder Mikie Mahtook to minor-league camp.