One person on the wrong end of the revolving door at Old Trafford this summer 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.
Kagawa was thrown back into action for Dortmund this weekend. He started the game against SC Freiburg in the Bundesliga - as Marco Reus was out with ankle trouble.
And the returning favourite son did not disappoint.
Kagawa scored the second of Dortmund's three goals at Signal Iduna Park to announce himself back onto the German stage in some style.
Now he has been speaking about the goal and his return, telling reporters after the game:
"Today I had goose bumps the whole time. It was very refreshing and a joy to play again in this stadium."
Kagawa, who also bagged an assist in the game, will be very pleased with the victory and to be playing first-team football once again. If he continues in this vein, he will be proving to United that perhaps he was not used correctly at Old Trafford.