At least one.
According to ESPN, the United States is the most well-represented team at the World Cup next to host nation Brazil.
While most American supporters sport the customary red, white and blue, 49ers fan Marlon Ferreria decided to dress in red and gold.
Ferreria posted the photo below on Instagram.
Are there any other 49ers jerseys (or gear of any kind) in Brazil?
Post links in the comments section below or share your photos on Twitter.
We'll post more photos below as the come in.