The Germany international, who has been linked with Manchester City, Liverpool and Chelsea in recent weeks, concedes that he has a major choice to make this summer
Chelsea, Liverpool and Manchester City target Mats Hummels admits he could depart Borussia Dortmund this summer.
The Germany international is out of contract at the end of June and has been heavily linked with a move to the Premier League.
And Hummels says he is aware that he is approaching a key moment in his career in the coming months.