Blockbuster deals stick with us. If I mention the Gerrit Cole trade or the A-Rod trade or the Roy Halladay trade, it's likely that a bunch of information pops into your mind -- the teams involved, how the move affected the clubs and maybe even the year and circumstances in which it was made.

That's all well and good. But what was the name of that shortstop prospect in rookie ball that landed your team a star? Not so smart now, are ya?

Let's see if you know your stuff. We've given you 20 noteworthy trades from baseball history, but with one of the pieces removed. For a bit of context, we've included the year as well, but not the teams involved. Sometimes the missing player is the headliner, other times ... they're not.

Ready? Go!

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