SANTA CLARA >> Sports bring fans together from all parts of the world, but what happens when they fear attending matches?

That’s the reality some of the 70,975 fans attending Mexico’s 1-0 win over Honduras in the CONCACAF Gold Cup semifinal had to face on Wednesday at Levi’s Stadium. Amid a festive tailgate and stadium atmosphere was the specter of ICE raids being carried out across the nation.

“I know a lot of friends, that’s why they didn’t come,” said Carlos Martinez, a Honduras supporter from San Jose.

Levi’s Stadium was filled to near capacity, but there were visible patches of open seats in the upper deck. Levi’s Stadium’s capacity is 75,000 for special events like the Gold Cup.

Soccer in the U.S. has increasingly become a political battleground. With the FIFA Club World Cup and CONCACAF Gold Cup being held at American venues, the issues surrounding the immigration policies of President Donald Trump’s administration have come to the forefront. Those matters may be on greater display next summer, when the U.S., Mexico and Canada host the World Cup, including six matches at Levi’s Stadium.

Before a Club World Cup match in Miami last month, U.S. Customs and Border Protection posted on social media that it would be “suited and booted” to help provide security. Some interpreted that as a threat to screen fans attending the match and potentially detain certain attendees whose citizenship status might be in question.

There were unconfirmed reports of ICE activity in Miami, but no agents were visible. Still, the possibility wasn’t far from the minds of those attending Wednesday’s match in Santa Clara.

“You’re talking about what’s going on right now. It’s kind of tense,” said Luis Dominguez, a chef who owns a Mexican restaurant in Ceres, a small town near Modesto. “But Mexicans, we’re always going to try to find a way to make it happen. It’s going to be having a good time, going to the game and supporting the team.”

Dominguez was mixing up fresh guacamole for a tailgate, and there was a lot more where that came from. Fans were grilling carne asada, pollo asado and al pastor, and preparing Honduran enchiladas.

The atmosphere was similar to what you’d typically see at a Mexico match in the Bay Area. Friends Luis Rangel and Pablo Ramirez of San Jose took turns kicking a soccer ball across a net, and mariachi music flooded the tailgate lots.

“Once it comes to the game, once it comes to playing the game of soccer, everyone comes together, and they come out and they just want to have a good time,” Rangel said. “We’re aware of the situation, but at the same time, we all want to come together and just have a good day, enjoy the game.”

A group of Honduran fans improvised a makeshift dance floor and stepped in time to traditional Punta music. Mexico had been to Levi’s Stadium before, but this year’s Gold Cup marked Honduras’ first appearance in the Bay Area in eight years.

“This is something that I don’t know when it’s going to happen again,” Ramirez said. “Who knows? It is a moment. You only live once.”

But the threat of deportation and the aggressiveness of the Trump administration’s immigration policy lingered in the background. Just a day earlier, a coalition of 90 civil rights groups sent a letter to FIFA, urging soccer’s international governing body to exert its influence to “guarantee the fundamental rights of the millions of football fans who will seek to attend the World Cup next summer.”