Since the summer window is already closed. I'm trying to make a small recap. Chelsea is becoming a club with most of sales in this window. They recorded €342m alone, which is breaking their previous record around €240m - €250m range. Almost €600m generated by just in a short time. They're crazy in player business, and they should get an aware to be the best salesman now. Bournemouth and Leverkusen are following Chelsea at the 2nd and 3rd. No doubt they generated so much money as they get rid almost all of their key players. Meanwhile, Liverpool is at the 4th with €220m generated from their sales. That's big, but they still suffer huge deficit since they spent far bigger than it in this summer window.
Talking about a successful transfer window of these team and the income they were able to generate, I wouldn't necessarily see Bayern Leverkusen as one of the successful teams because they practically weakened their team all in the name of making money, so if I were to be rating these teams, Bayern Leverkusen will never be among them because their activities in the transfer market shows that they are quite ok being an average team, that's why they practically kill their team without looking at the disadvantage of that.
As for Chelsea, I am seriously surprised that their transfer chief is this good in getting a better deal for average players, and they still manage to strengthen their team more than last season, so on that note, it's obvious that they are the biggest winner in this year summer transfer window.
Yeah In this summer transfer chelsea are considered the winner making so much amount from bunch of average players. Good business from Chelsea.