The Giants and Rays signed Cuban pitchers Reinier Roibal and Sergio Espinosa, respectively, tweets Jorge Ebro of El Nuevo Herald.

Roibal, a 20-year-old righty throws in the mid-90s according to Cuban Ball PlayersEbro tweets that Espinosa, a 23-year-old southpaw, will be used mostly as a reliever by the Rays.

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