On Tuesday, FIFA announced that 1.5 million tickets for the Club World Cup from over 130 countries were purchased.
More than 60,000 turned up for the opener at Miami's Hard Rock Stadium on Saturday, which featured Inter Miami and Egypt's Al Ahly, while some 80,000 were in the Rose Bowl stands as Paris Saint-Germain beat Atlético Madrid 4-0 on Sunday.
However, some matches were sparsely attended, as a 0-0 draw between Borussia Dortmund and Fluminense that kicked off midday on Tuesday at MetLife Stadium in New Jersey.
Chelsea Head Coach Enzo Maresca described the atmosphere at his team's game against LAFC as "a bit strange," as 22,000 spectators came to watch at the 71,000 capacity Mercedes-Benz Stadium in Atlanta on Monday.
"This is exactly what the FIFA Club World Cup was created for: a world-class stage where new stories are told, new heroes emerge, and club football fans feel part of something bigger," FIFA President Gianni Infantino said in a statement.
FIFA hopes to build enthusiasm for the quadrennial spectacle among often soccer-ambivalent fans in the US, which will co-host the tournament next year with Canada and Mexico.