I am also one of the copy editors for my school newspaper. Scanning over every article with a fine toothed comb is something I find both extremely necessary and somewhat enjoyable.
But for these two flubs, it looks like everyone that had a hand in it made one giant "Uh-oh!"
First up, the case of mistaken identity. This was scanned and sent in by Corey Mansfield. He said he was scanning a fantasy baseball magazine ("Fanball - Fantasy Baseball, Annual Guide 2009" to be exact) and came across this box for Carlos Beltran.
But...that's not a photo of Beltran...

Next up is something sent in by Ryan Punzalan of Retire31.com.
This one is a must-have for the avid baseball card collector. It just sold for $305 on eBay, so hopefully another one pops up.
As if there wasn't a bigger jinx ever created, I present you this -- the Topps Johan Santana No-Hitter card...
"What do you mean he didn't throw a no-hitter?! Really? Are you sure? 100 percent? Awww...shucks..."
A life lesson learned: If you're going to make something, make sure you check it over a few times before you hit "send to printer."
UPDATE: Here's a story about the "fake" cards (like Santana's) that Topps PURPOSELY printed up. Not very funny, guys.
Thanks, Ryan and Corey! And Buzz!