The agent of Weston McKennie is unsure of his future with Juventus.
Having joined Juve on-loan from Schalke at the start of the season, McKennie's impact convinced the Bianconeri to bring forward plans to buy him outright in February.
However, the USA international could yet be sold this summer due to Juve's need to raise €100m to help balance the books.
David Muller told TMW: "Juventus are one of the best teams in the world, it is an honour to play here and Weston has never had any doubts about this.
"However, football is a very short-term activity for all teams, players, clubs, etc ..., take for example the last season at Schalke: at the beginning of the season no one thought he would leave so soon.
"All I know is that he is extremely happy at Juventus, so I don't expect things to change anytime soon. So far. it's a great success story for both sides."