The NFL's first regular-season game outside North America is already looking like a big hit.
More than 500,000 tickets were requested by about 160,000 fans in the three days following Friday's official announcement, the NFL said Wednesday.
The ticket request process will end Feb. 18, two months before tickets go on sale for the Oct. 28 game between the Miami Dolphins and the New York Giants at Wembley Stadium.
Wembley is expecting to seat between 85,000-90,000 for the game, reports AP.
"Nearly all these requests have come from UK based fans," said Alistair Kirkwood, the managing director of NFL UK. "These figures do not take into account the allocation of tickets for Dolphins and Giants fans from the United States, so we anticipate a very quick sellout when tickets go on sale in early March."
On Sunday, more than 4,000 fans gathered in London to watch the Super Bowl at Super Bash, which is in its fourth year.