The last World Cup clash between the United States and Iran 24 years ago is considered one of the most politically charged matches in soccer history.

This time, the political overtones are just as strong and relations perhaps even more fraught as the U.S. and Iran face off once again on Tuesday in Qatar.

Iran’s nationwide protests, its expanding nuclear program and regional and international attacks linked back to Tehran have pushed the match beyond the stadium and into geopolitics.

No matter the outcome, tensions are likely only to worsen in the coming months.

When relations soured between the U.S. and Iran depends on who you ask. Iranians point to the 1953 CIA-backed coup that cemented Shah Mohammed Reza Pahlavi’s power. Americans remember the 1979 U.S. Embassy takeover and 444-day hostage crisis during the Iranian Revolution.

In soccer, however, the timeline is much simpler as this will be only the second time Iran and the U.S. have played each other in the World Cup.

The last time was at the 1998 tournament in France — a totally different time in the Islamic Republic. Iran won 2-1 in Lyon, a low point for the U.S. men’s team as Iranians celebrated in Tehran.

At the time, Supreme Leader Ayatollah Ali Khamenei praised the Iranian team, saying “the strong and arrogant opponent felt the bitter taste of defeat.”