MLB.com showcased 12 year old Dawson Batts recently.  Batts was born without his left arm and started paying t-ball when he was 3 years old and he hasn't stopped yet. He plays first base and pitches and the announcers in the story here say he's had a couple of unassisted triple plays.  Awesome!

Again, the 'comments' section of the MLB article story is entertaining.  Note how the Detroit Tigers fan called out the Yankees fan.

'Mr. Yankees Fan', my mom used to say to me (not that long ago), "You don't have to be a jerk, just because you're good at it."