Since you can get the answer just by clicking "More," you're on your honour here, but how many of the Top 10 home run hitters among "O" players can you name?
Now, if you're into reading headlines, you surely have the only "O" member of the 500 homer club already, and likely one of the other nine as well. Here's a hint or two: three of the 10 (#3, #8 and #10, actually) are still active. Two of them made significant contributions to Canadian baseball -- one (#3) as a Blue Jay and one (#6) as an Expo.
But seriously, these are hard!