Manchester United have undergone a change this summer, with plenty of players coming in to the club and plenty going out.
One person on the wrong end of the revolving door at Old Trafford was Japan international Shinji Kagawa. The attacking midfielder joined the club from Borussia Dortmund in 2012 but never truly settled into life at the club.
He was often played out of position on the left-hand side of midfield and with the arrival of Louis van Gaal this summer Kagawa was allowed to move on. He returned to Dortmund in a £6.3 million deal this summer - almost a £10 million loss on the player.
Now Kagawa is set to get back into action for the club with a second debut expected against SC Freiburg this weekend. And his boss says they need him.
Jurgen Klopp is reeling from the news that Marco Reus faces a spell out of action after suffering an injury whilst playing for Germany against Scotland at the weekend.
So he is relying on Kagawa to quickly get back to his best for the club:
"We cannot afford to wait for a few more weeks before we bring Kagawa. Shinji will be very important to us right away. He has made a good impression on the training pitch in the past few days and has shown that he still has plenty to offer - although we realise that we cannot expect Shinji to be back to his former best from two years ago right away."
Kagawa will be relishing the opportunity to play regular first-team football once again.