This Major League Baseball offseason, while slow to build up, has started to make many large splashes. Recently, Adam Dunn signed a contract with the White Sox, and Troy Tulowitzki agreed to a massive extension with the Rockies.

While free agents are being signed, players are being traded. What is particularly interesting about the rumor mill for trades this year is that many of the players there were once considered untouchable. No one saw Jose Reyes leaving the Mets five years ago, or even last year, and likewise for Zack Greinke.

These are the 15 players who are no longer untouchable, and, as a result, are the target of potential trades.

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