Shinji Kagawa has admitted that he will struggle to adjust to life without Jurgen Klopp, as the Borussia Dortmund manager prepares for his final three games with the club.
The Japanese midfielder has enjoyed two spells under the guidance of Klopp either side of two frustrating seasons with Manchester United, and he concedes that he could find it tough when Thomas Tuchel arrives.
"A new boss is coming, that means it is difficult for me like it was in Manchester," Kagawa told reporters.
"But the most important thing is to trust each other and set the same goals, then go forward in the same direction and work together.
"We have to work hard before the season starts. That's the only thing we can do. We must have the same target and believe in him, I'll do my best."
Dortmund return to action against Wolfsburg on Saturday afternoon.
