Well. If it's a "large Spanish club", played in a "large neutral stadium" in Portugal, then someone, somewhere will be looking to make money out of it. The Stadium owners will be angling for a cut, there'll be some media rights to sort out, either live TV or streaming, pitch side advertising, the FA, Premier League & their Spanish & Portuguese colleagues will have to sanction the game & give approval. I suspect, an agent may have got the basics together and spoken to the two clubs to get an in principle agreement in place. Those rumours will start doing the rounds. If nothing else, because the agent will want to demonstrate to TV, sponsors, advertisers, etc that there would be some interest in the fixture if it happens. Last, but not least, the clubs themselves will want some synchronised announcement. We're a Premier League outfit now, there'll always be some stand off about money. For the Club themselves, it's reasonably straightforward. They'll have booked the flights, hotel & training facilities. They're going. Now, they need to get the small print together for a game. The one in La Manga was effectively against a made up team of available non leaguers from the local area.