MLB MLB's new "Players Weekend" uniforms.
Major League Baseball and the MLB Players' Association have announced that all teams will wear special brightly colored uniforms for the first-ever "Players Weekend" August 25-27.
In addition to the bright colors, the uniforms will also feature player nicknames on the back, and according to SportsLogo.net, who first broke the news and the photos, other uniform restrictions will be loosened to allow players to wear things like customized cleats and bats.
This is a popular trend in pro sports. The NFL has their "Color Rush" uniforms for Thursday night games and for one weekend during the 2016 season they allowed players to wear customized cleats to support their favorite charities.
The NBA has allowed players to occasionally wear nicknames on the back of their uniforms for special designated games in recent seasons. Individual MLB teams and players have used nicknames on the back of their jerseys in the past (e.g. the 1976 Atlanta Braves), but the most notable instance of nicknames on uniforms was the short-lived XFL football league.
Below is a look at all of the MLB uniforms and the nicknames that have been released so far.