The NFL is "on the cusp" of bringing a fourth game to the United Kingdom, according to London mayor Sadiq Khan.
London hosts three regular-season games - the New York Giants beat the Los Angeles Rams 17-10 at the home of English rugby union, Twickenham, on Sunday, while the Cincinnati Bengals will meet the Washington Redskins at Wembley next weekend.
Premier League club Tottenham's new stadium will host NFL, along with Wembley and Twickenham, when it opens in 2018 and Khan hopes to oversee greater exposure of the ever-popular International Series on British shores.
He told the Evening Standard: "I want London to be the business capital of the world, the cultural capital of the world and the sporting capital of the world.
"I hope that the Commissioner — no pressure — will have good news in the next 45 days. Just imagine if we went from three to four."
Khan is also reportedly targeting playoff games, and even a Super Bowl, to be brought to London, which has hosted the NFL every year since 2007.
NFL commissioner Roger Goodell has spoken favourably of London gaining more games in the past and has even offered positive hints on the chances of a franchise being based in the city.