Celtic and Rangers are considering a lucrative offer to play an Old Firm game in the US this summer, reports The Guardian. The clubs have never met outside Glasgow but have been approached to stage a fixture during their tours of North America in July.
The venue for any derby would likely be the Gillette Stadium in Foxborough, Massachusetts, the home of the NFL's New England Patriots and the Major League Soccer side New England Revolution.
Celtic drew a friendly against the Revolution there in July 2006.
Just over 16,000 spectators watched that match, but organisers believe an Old Firm game would attract a crowd close to the stadium's 68,750 capacity, generating much-needed revenue for both clubs.