Beltran's tendinitis in his left knee opened up the possibility of Fernando Martinez making the opening day roster. Martinez had been seen as one of the players who might assume his place in the lineup. But the 22-year-old outfielder, who has been among the club's most promising prospects, was optioned to Minor League camp along with shortstop Ruben Tejada, third baseman Zach Lutz, infielder Jordany Valdespin and right-handed pitchers Armando Rodriguez, Josh Stinson and Manny Alvarez.
Center fielder Kirk Nieuwenhuis, catcher Kai Gronauer and right-handed pitchers John Lujan and Tobi Stone were re-assigned to Minor League camp. Forty-five players, including 12 non-roster invitees, remain in camp.