The City Group are interested in signing United States teenager Cavan Sullivan, a source has told ESPN.

Sullivan, who is 14, has impressed as part of Philadelphia Union's academy and has also represented the U.S. at youth level.

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The City Group, headed by Premier League and European champions Manchester City, have been aware of Sullivan's progress for a while and are ahead in the race to secure the teenager's future despite interest from other major clubs in Europe.

A source has told ESPN that The City Group would possibly look to place Sullivan with one of their clubs in Europe once the forward has turned 16.

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Belgian side Lommel SK, managed by former Arsenal defender Steve Bould, are among the options. He would not be allowed to join Manchester City until he's 18.

A source has told ESPN that reports Sullivan has already reached an agreement with The City Group are premature and there remains a scenario which would see the teenager stay with Philadelphia, at least for now.

"Those that maybe haven't learned yet, a young Cavan Sullivan has the talent and ability to become, I'll just say, a household name and is doing really big things," Philadelphia head coach Jim Curtin said last year.