Freddy Adu's agent has admitted holding "friendly discussions" with both Chelsea and Manchester United, but says any deal has yet to be agreed.
Adu has been a target for the world's top clubs
BBC Sport last week revealed the 16-year-old American, who plays for DC United, was being watched by Chelsea.
On Sunday Adu's agent Richard Motzkin told BBC Radio Five Live: "Chelsea and Manchester United have talked with us about Freddy and are interested.
"Those discussions have taken place over the years and will continue."
The 16-year-old, who made his international debut for the USA in January, is a prime target for Europe's top clubs.
Chelsea would have to agree a deal with both Adu and Major League Soccer (MLS) in the United States but the club's financial firepower means this is unlikely to present a problem.
Motkin added: "We know the people at Chelsea well and they are good people, as well as at Manchester United and we will engage in friendly discussions with people.
"At the appropriate time and location Freddy will get an opportunity.
Despite the interest of Chelsea and Manchester United, Motkin denied reports that a deal had been struck or negotiations over a transfer have taken place this season.
"There is not a deal been done with Chelsea at this time.
"There hasn't been contact along the lines of a deal being done with Chelsea or Manchester United this season.
"No deal has been done with any club for Freddy to go anywhere at this time."
MLS said it has not spoken to any club about Adu's future.
"He plays for DC and will be playing for DC for the foreseeable future, " said MLS deputy commissioner Ivan Gazidis.
Chelsea's management team met Adu for the first time during a pre-season tour of the US in July 2004 and invited him and his mother to their game against AC Milan in New York.