Just a heads up : OM was sold years ago. Southampton's owner is the son of the deceased Louis Dreyfuss.As Bluesfan mentioned, Red Bull did this long before nationality got involved. I get the value for the sport, but I suggest that an Arab prince, Chinese real estate tycoon, or African mining company owner could've all done this down the road themselves. Hell, the owner of Sunderland is the son of the owner who owns Olympique Marseille.
E: The primary way to stop this is actually implementing laws that make it illegal.
Frank McCourt is OM's owner. Has been for a long time now.