The Premier League would only be allowed to play their games in America if Fifa permits them, according to the chief of the US Soccer Federation.
“We’ve been reluctant to have official games played in the US,” US Soccer chief Sunil Gulati told BBC Sport.
“We’ll be guided by Fifa on this matter. But if it’s not in line with its rules then we won’t sanction it.”
The Premier League has proposed having a 39th round of games played overseas, and, despite widespread criticism for the idea, chief executive Richard Scudamore remains determined to press ahead with his plans.
“Clearly, there are a lot of hurdles to overcome,” he told the BBC.
“We’ve seen how sport is globalising, we compete in the entertainment industry.
“This is a solidarity move where all 20 clubs want to do it. It benefits all of them and it’s far better we all do it rather than allow single clubs to.”
Gulati said he had read about the proposals but that his federation had yet to be approached by the Premier League.
“We had a similar proposal 10 years ago when a team playing in Los Angeles wanted to play in the Mexican league,” he said.
“We didn’t let that happen and Concacaf (the Confederation of North, Central American and Caribbean Association Football) said no.
“We understand it’s a global sport but it’s about nurturing the home game.
“If Fifa said ‘OK, it’s up to the relevant FA’s, then we would look at the Premier League proposal.
“We’ve got a great relationship with the English FA and there’s a lot of good reasons to look at it.
“But there are also some issues that we’ve got which would cause us to be very hesitant.”