The 27-year-old has been touted as a possible target for the Red Devils in recent weeks as Louis van Gaal looks to bolster his midfield options at Old Trafford ahead of next season.
However, although the Argentina international admits he is aware of both United and Valencia’s interest in him, he is determined to stay focused on the World Cup.
“I know about their [United and Valencia’s] interest, I have heard about these possibilities and my agent told me about them, too,” Pérez told O Jogo.
“There is the possibility of playing for Valencia, who are a great club, but right now I want to be fully focused on the Argentina national team and on the World Cup.”
Pérez scored four goals in 28 league appearances for Benfica this season.
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