US President Donald Trump received a mixed reception during his appearance at Game 3 of the NBA Finals in New York on Monday, but for many fans, the bigger story was the disruption surrounding his visit.

Trump became the first sitting US president to attend an NBA Finals game, arriving at Madison Square Garden to watch the New York Knicks take on the San Antonio Spurs. However, his presence brought an unprecedented security operation that transformed what should have been a celebration of basketball into a logistical challenge for thousands of supporters.

When the president appeared on the arena's giant screens during the national anthem, loud boos erupted from sections of the crowd. Trump later dismissed suggestions of a negative reception, telling reporters he believed the response was largely positive and enthusiastic.

Outside the arena, however, frustration was harder to ignore.

Fans faced lengthy queues stretching for blocks as security checks slowed entry into Madison Square Garden. Streets surrounding the venue were closed to both pedestrians and vehicles, while a heavy deployment of police and Secret Service personnel created airport-style security procedures.

For New York supporters, the timing could hardly have been worse.

The Knicks are appearing in their first NBA Finals since 1999, ending decades of disappointment and reigniting excitement across the city. Orange-and-blue-clad fans filled bars, parks and public viewing areas as New Yorkers embraced a rare championship opportunity.

Yet several fan events were either restricted or cancelled because of the president's visit. Some local businesses also reported lower-than-expected foot traffic despite what would normally have been one of the busiest sporting nights of the year.

The disruption highlighted the unique challenge of hosting a sitting US president at a major sporting event. While presidential appearances can add prestige and attention, they also bring extraordinary security requirements that inevitably affect ordinary spectators.

The contrast was striking. Inside the arena, celebrities and political figures watched one of the biggest games in recent New York sports history. Outside, many supporters were navigating roadblocks, searching for alternative routes and trying to salvage their game-night experience.

For some fans, Trump's attendance was an exciting moment that underscored the significance of the Finals. Others felt the focus shifted away from the team and the city that had waited nearly three decades to return to basketball's biggest stage.

Ultimately, the night delivered both drama on and off the court. The Spurs secured a 115-111 victory to cut New York's series lead to 2-1, but conversations afterward extended far beyond basketball. For many New Yorkers, Game 3 will be remembered not only for the result, but also for how politics, security and sport collided on one of the biggest nights in the city's recent sporting history.