The Boston Red Sox, a new reporsays, may trade Marcelo Mayer, their No. 1 prospect just two years ago, for a game-changing All-Star.

There will inevitably be a winner and a loser to every MLB trade, but sometimes the scales tip more drastically and the end result is a lopsided deal.

The Tampa Bay Rays have made a few additions to their Major League roster this offseason. Thus far in free agency, they have ...