Cuban outfielder Rusney Castillo is believed to be wrapping up his one-on-one workouts with interested teams.

He is expected to narrow his choices in the coming days.

The 27-year-old held a showcase last month that drew scouts from 28 Major League teams, but the New York Yankees, Boston Red Sox, Philadelphia Phillies, Seattle Mariners, Baltimore Orioles and Chicago Cubs were all reported to be a private workout scheduled.

Boston is expected to be "aggressive" in their pursuit of Castillo.