The NFL has announced that there will be four regular-season games hosted in London next year for the first time.
Having staged three matches on these shores in front of sold-out crowds in each of the past three seasons, an extra London game will be added to the schedule for the 2017 campaign 10 years after the International Series began.
NFL franchises only have eight home games per regular season, so this will see the equivalent of half a home slate played in England, a potential key landmark ahead of the possibility of a London-based franchise further down the line.
The four games will be announced on Tuesday afternoon, though it has already been confirmed that the Miami Dolphins will meet the New Orleans Saints, while the Jacksonville Jaguars are contracted to play at Wembley every year until 2020.
Twickenham was a venue for an NFL game for the first time back in October and is set to host at least another two games over the next two seasons under the terms of their deal.
The Mayor of London Sadiq Khan said: "London staging a fourth NFL game is fantastic news - not only for the millions of sports fans who get to enjoy our iconic stadiums - but also because it confirms our status as the go-to choice for hosting the world's biggest sporting events.
"London is the international home of the NFL and staging the equivalent of what would be half an American football team's home games in the city is a huge step towards my ambition of bringing a franchise to the capital.
"I am really excited to welcome more NFL teams to London next year, as well as thousands of American football fans from around the globe, showing that London is open to the very best sporting events and the world's greatest athletes."