Who's The Mystery AL 'Roider?

Interesting tidbit in our copy of USA Today Sports Weekly that showed up in our mailbox today:

An American League outfielder on a postseason team tested positive for steroids, according to his agent, but the player is appealing the results.

As embarrassed as we kind of are for taking random gossip cues from a publication as edgy as Sports Weekly, this did picque our interest a bit. In fact, because we're irresponsible, we thought we might get your guesses in the comments section of this post. So, go ahead and guess! It'll be fun! Random speculation rules!

USA Today Sports Weekly [USA Today]

(By the way, we highly doubt it's Hideki Matsui, though we put a picture of him up there because we thought it might be funny. Hey, he does have a big head.)