Baseball fans are used to weather delays, rain delays, and even the occasional "lights out" delay. But on Friday night, the MLB added a new one to the list: the "white sleeves delay."

It happened during a matchup between the Texas Rangers and the Chicago Cubs. Rangers pitcher Kumar Rocker stepped onto the mound in Arlington wearing white sleeves under his jersey. That's when the umpires stepped in and stopped the game.

The reason? Simple physics and a clear rule: white sleeves can make it harder for batters to see the white baseball as it's released from the pitcher's hand. Since the ball and the sleeve are nearly the same color, it creates a visual blur that could give the pitcher an unfair advantage—or worse, make it dangerous for hitters.

So, the umpires ordered Rocker to change his sleeves before he could throw another pitch. The game was delayed while he sorted out his wardrobe, leaving fans and announcers alike amused by the unusual stoppage.

While some pitchers might get away with it depending on their release point, the rule applies to everyone equally. It's a reminder that in baseball, even the smallest detail—like the color of your sleeve—can make a big difference.

For Rocker, it was a quick lesson in MLB uniform regulations. For the rest of us, it was one of the more bizarre delays you'll ever see on a baseball diamond.