UEFA president Michel Platini has taken a swipe at big-spending clubs for stockpiling the game's best players.
The Frenchman believes that European football's top leagues have become less competitive as a result of certain sides recruiting the finest talent around.
Teams are required to have eight homegrown players in their 25-man Champions League squads, but Platini may look to increase this number in an attempt to stop mass spending on a raft of individual players.
"What is important in the future is to limit the possibility to have the best players in one team," he told World Soccer Magazine. "That is important for competition.
"At the moment you have big clubs with a lot of money who can have everybody. [It means] you can have all the best players in the same team.
"In the past in Spain, you have Real Madrid, Atletico [Madrid], Barcelona, Valencia, a lot of teams and all the players were in different teams. Now, more or less, the best players are in one or two clubs."
Platini is yet to make a decision over whether he will run to replace outgoing FIFA boss Sepp Blatter later this year.