Manchester United are keeping tabs on the development of Borussia Dortmund starlet Christian Pulisic, reports The Daily Mail.

Pulisic, who is a boyhood United fan, has developed into one of the most highly rated youngsters in world football and has previously been linked with a move to Liverpool.

Jose Mourinho’s side want to sign another winger next month and have already checked in on Bordeaux star Malcom and Chelsea forward Willian.

Dortmund slapped a £35m price tag on his head last year and that valuation will only increase as he continues to develop.

United are not the only European heavyweight tracking the United States international, with Bayern Munich also a fan of the 19-year-old.

Pulisic has scored three goals in 16 Bundesliga appearances this season. Furthermore, the teenager has completed the most dribbles in German’s top flight this term (49).