The MLB offseason is officially here. Free agency has already kicked off, but few deals have been agreed to thus far, and most of the big-name players on the open market won't sign until later in the year or even next year. Free agent signings aren't the only way for teams to add to their rosters in the offseason, though.

Trades also play a huge part in the offseason. There are some deals that just make too much sense , but what really gets the fans going are borderline unrealistic blockbuster deals. So, here are three huge MLB trades that would shock the entire baseball world.

Fernando Tatis Jr . becomes the latest Padres' star to switch teams

Kevin Alcantara (Cubs No. 5), Moises Ballesteros (Cubs No. 2), James Triantos (Cubs No. 10), Josiah Hartshorn (Cubs No. 15), Jack Neely (Cu

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