Martinez will not stand in the way of their World Cup ambitions, provided the deal is right for the Toffees.
"If the right thing appears for the players, I will have to consider it and look into it," the Spaniard said.
"I am quite open-minded about it. If they don't play minutes. It will affect their World Cup chances. I can understand that.
"Because they are such good professionals I have to consider "But it's a balancing act and we can't weaken the squad."
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