If you’ve watched any of Puerto Rico in the World Baseball Classic, you’ve undoubtedly noticed how members of the team have dyed their hair blond. They aren’t the only ones.

In fact, the citizens of Puerto Rico are taking the WBC so seriously that it’s causing a blond hair dye shortage -- yes, really. Here’s the Associated Press on the story:

“Ever since they began winning, this has not stopped,” said Myrna Rios, a manager at a Sally Beauty Supply store in the capital of San Juan. “We have run out of the product in most of our stores.”