The Ineos investment in Manchester United. Manchester City's sister club Girona riding high in Spain's La Liga. Rumoured Saudi Pro League club interest in Newcastle players. The issue of multi-club ownership models is back in focus.
Rules around multi-club ownership could soon be tightened up, with Uefa president Aleksander Ceferin recently saying it is his "biggest problem where I don't have a solution".
City and Girona occupy Champions League qualification places, with City's owner, the Abu Dhabi-backed City Football Group, also owning a 47% stake in Girona.
Uefa rules stop anyone having "control or influence" over two clubs in the same Uefa competition, and in March Ceferin said they needed a "rethink".