Manchester City boss Sven Goran Eriksson has described the transfer market as "a jungle".
"The other day I was sitting with my coaches and my phone rang. It was an agent offering a player, so straight away I asked the price. You have to do that because I can't just phone the club and say I want this one. Ten minutes later another agent rang about the same player. I asked the price and it was three times higher than the first one. I have some experience of dealing with agents from my time at Lazio, but things have certainly moved on since then."