Romero , 26 , had a 5.91 ERA with 50 strikeouts and 28 walks in 52 appearances last season .
The Nationals added to their bullpen depth by acquiring Enny Romero from the Rays for minor - league pitcher Jeffrey Rosa .
Enny Romero , 26 , had a 5.91 ERA with 50 strikeouts and 28 walks in 52 appearances last season .
The Nationals added to their bullpen depth by acquiring Enny Romero from the Rays for minor - league pitcher Jeffrey Rosa .