I'm confused by this move. The issue is that now the Red Sox 40 man roster is full. So, if the Red Sox were to acquire anyone as a free agent they would have to release someone. Or trade them.
Anyway, Parraz is a career minor leaguer and is 26 years old. He spent the last few years in the Royals system. He hit .266/.350/.410/.760 for Omaha last year. Not bad numbers. If he makes the Majors, he would be an adequate fourth outfielder. But I would not count on it. With Daniel Nava, Josh Reddick, Eric Patterson, Darnell McDonald, and Ryan Kalish all under contract next year, plus starters J.D. Drew, Mike Cameron, and Jacoby Ellsbury still around, it looks like the outfield is pretty full. I think Parraz is the first to be cut if the Red Sox acquire someone.
This is a non-story.