According to Initiative's most recent ViewerTrack, in more than 50% of surveyed markets, it was the most watched match of the tournament so far.
Across 13 markets for which overnight data is currently available, the average live audience is already 52m people, and on target to be well in excess of 150m once all countries' data is released.
The match was the most popular to date in a number of countries, including Spain, where it pulled in 3.4m and in Croatia where 1.9m watched.
It also drew particularly large audiences in a number of countries that have not qualified for the World Cup, including Belgium, Denmark, Greece and Slovakia.
Without their own national team to cheer, it is likely that interest in these countries is transferred in many cases to Brazil, who are often people's "second team" to support.
Brazil's matches at the World Cup traditionally draw the largest TV audiences. Viewers enjoy watching the five-time World Champions because of the attractive brand of soccer which they play. At both World Cup 1998 and World Cup 2002, audiences for Brazil's games were larger than for any other team.
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