Wigan Athletic boss Roberto Martinez is convinced the days of clubs collecting world class players are over.

Martinez pointed to some of the biggest clubs in world football as proof that the days of running a massive squad with players of a similar value have, in the main, gone.

"At the moment, I think it is a big problem in modern football, with the way budgets are, and it is affecting every team," he told the Wigan Observer.

"If you take Andres Iniesta, Lionel Messi and Xavi out of the Barcelona team, they are not the same side. It is the same with Steven Gerrard and Fernando Torres at Liverpool.

"And we are the same. If we are missing two or three players, we are going to be affected.

"It's something that doesn't concern me, but it's something we need to look to address over the next two or three years, and come up with a stronger structure."