It could be an all-American board at Arsenal this summer.

The Guardian says Stan Kroenke's investment in Arsenal could be stepped up in partnership with Philip Anschutz, according to US sources.

Kroenke bought the Colorado Rapids from Anschutz, the other billionaire sports tycoon from that state. Despite his low-profile Anschutz has been involved in several significant sports investments in England.

His Anschutz Entertainment Group operates the O2 arena, was responsible for David Beckham's £128m move to LA Galaxy and has a hand in his global academy franchises. AEG declined to comment on suggestions of his Kroenke partnership.