Rugby Football League chief executive Nigel Wood believes that if they are to secure the future of the sport then the Wembley World Cup semi-finals need to be a success.
Wood admits that it's also a key opportunity for Rugby League to project itself in London and get people participating in the sport.
"Nothing cuts through like international rugby league," he told BBC London 94.9.
"The semi-final double-header at Wembley is absolutely crucial, it's a wonderful facility that drags people to it just because of where it is.
"The only way to do that is to have Wembley as close to full as possible."
London is still yet to home a strong and successful Super League side, with London Broncos being the only team and they have never won a major trophy.
In an attempt by the league to expand into other areas, Perpignan-based Catalans Dragons were added and also Welsh side crusaders. However, the Welsh side withdrew from the Super League in 2010.
Wood also feels that the double-header is a unique opportunity to portray the sport around the globe.
He added: "We need to show the world at large that rugby league is alive and well."
The Rugby League World Cup begins in October later this year and the tournament finale will be on November 30 at Old Trafford.