Michel Platini says UEFA will "see what we can do" to curb excessive spending among Europe's top clubs.
Manchester City and Paris St Germain have been carried to the summit of the Premier League and Ligue 1 respectively on the back of the vast wealth of their middle eastern owners.
City's 6-1 derby win over Manchester United on Sunday took them five points clear of their city rivals, and came courtesy of two goals apiece from Mario Balotelli and Edin Dzeko and one each from Sergio Aguero and the inspirational David Silva - the reported fees paid for the quartet total around £115million.
