Borussia Dortmund has been a fruitful hunting ground for Manchester City and that should continue. Ilkay Gundogan was the first to swap the Rhine-Westphalia region for rainy Lancashire as he became Pep Guardiola's first signing for City in 2016.
The midfielder arrived off the back of a serious injury and then suffered another one just a few games into his City career but managed to come back from those setbacks to play an incredibly important role in the Blues' success over the years.
It was Gundogan's brace that sealed last season's Premier League title and he has now risen to be the club's captain. It was then Dortmund who got a bit of joy out of the relationship when they signed Jadon Sancho, Jamie Bynoe-Gittens and Jayden Braaf over the years but this past summer City would raid the Bundesliga giants big time.
First and most significantly, of course, was the signing of Erling Haaland. READ MORE: How Jack Grealish can make all the difference for Man City against Manchester United Thanks to a release clause, the Norwegian sensation cost less than £50million and it's looking less a bargain and more the heist of the century with every passing game.