Tony Fernandes was at West Ham United for Saturday's 2-0 win over Portsmouth.
The Sun says Malaysian entrepreneur Tony Fernandes was sitting nearby former Birmingham City co-owners David Gold and David Sullivan.
The Air Asia owner, like Gold and Sullivan, is a lifelong Hammers fan and has already held talks with the club about buying a 51 per cent stake.
His offer is viewed by many as the main rival to the Gold and Sullivan deal.