Frenkie de Jong, a Barcelona midfielder, has not ruled out leaving the club this summer.
However, the 25-year-old would rather join Bayern Munich than Manchester United.
United are attempting to sign De Jong ahead of the new season, but have yet to reach an agreement.
Despite his uncertain future, the Dutchman has joined his Barcelona teammates on their pre-season tour of the United States.
While Manchester United and Chelsea are the most closely linked, Bayern Munich may have the financial clout to steal a march.
With De Jong's compatriot Matthijs de Ligt on the verge of joining, the Bundesliga champions may have an additional advantage.
According to Sport, De Jong has ruled out a move to United and would require a "stunning offer" to consider joining Chelsea.