​Real Madrid and Barcelona could face off in the 2020 International Champions Cup as promoters of the annual United States tour want to arrange a Clasico showdown at a new NFL stadium in Las Vegas.

The Allegiant Stadium is to be a new $1.9bn venue built for the Oakland Raiders, who are relocating from their previous home in California, with a potential capacity of 61,000 for football matches.

The ICC was launched in 2013 by RSE Ventures, beginning primarily as a North American event but has since expanded to Europe, Asia and Australia - with a US-based women's tournament added in 2018. El Clasico is one of sport's most-watched spectacles, and the goal would be to have the clash become the first sporting event held at the new state-of-the-art arena. 

According to the ​Washington Post, a deal is being worked on to host the two ​La Liga sides sometime in the summer, before the NFL season kicks off in early September. Last season's International Champions Cup saw Benfica finish top of the 12-team table, although ​Madrid remain the most successful side in the competition with three titles.

While the Allegiant Stadium is the preferred destination, the report adds that other venues are under consideration. The SoFi Stadium - a new NFL stadium in greater Los Angeles - has been mentioned, which will hold around 70,000 spectators when it has finished being built.

Work is being done to set the plan in motion, although a member of the organisation stressed that nothing had been agreed upon as of yet.

International Champions Cup 2017 - Real Madrid v FC Barcelona

“We are always exploring compelling matches, but at this time, no ICC matches are finalized,” said Ben Sosenko, spokesman for the tournament organiser, Relevent Sports Group.

The two La Liga giants have previously played against one another across the pond, with both teams regularly flying out to the United States as part of their pre-season training camps. Back in 2017, they played in front of a sellout crowd at the Hard Rock Stadium in Miami - a clash ​Barça emerged as 3-2 winners from.

For more from Ross Kennerley, follow him on Twitter!