This is a first for any American professional sports team!

The Baltimore Orioles wore jerseys that featured braille in placed of the standard letters used for players names and the teams name and logo!

According to a  story from Metro Source News:

The Orioles became the first American pro team to wear Braille-lettered jerseys during their game Tuesday.  Tuesday was the 40th anniversary of the National Federation of the Blind moving their headquarters to Baltimore.

The Orioles lost to Toronto 6-4.