Vladimir Guerrero

With Gary Sheffield's 500th career home run last night at the new Citi Field, Sheff entered a group that includes only 24 other men - quite a feat considering the hundreds and hundreds that have played major league baseball.

It got us to thinking about what other baseball milestone could be achieved this season. By the way, props to Paul Konerko and Jermaine Dye for not only hitting their 300th career home runs but doing it back-to-back. Now that is pretty awesome.