Multiple major-league sources have confirmed that the Red Sox have signed two international amateur free agents, Mario Alcantara and Raul Alcantara. (The two are not related, nor are they related to former Red Sox player Izzy Alcantera.) Both were signed out of the Dominican. 

Right-handed pitcher Raul Alcantara is considered one of the better international amateur pitchers available during this signing period, which runs from July 2 through the end of August. Alcantara demonstrates advanced command of a mid- to high-80s fastball, and his frame (he is roughly 6-foot-3) suggests the potential for a future increase in velocity. He also shows good feel of a breaking ball. He is believed to have signed for approximately $500,000.

Mario Alcantara is also a tall (approximately 6-foot-3) right-handed pitcher. Reports indicate that he has a high-80s fastball and curve. According to one baseball source, he signed for approximately $350,000.