Earlier, Italy's "Milano Sport" counted the top 10 clubs in European football from 2012 to 2022, with the net expenditure of reinforcements, as well as the number of championships won by each club. To put it bluntly, this list is to see the top 10 clubs in the transfer market and the return on investment. Unfortunately, Manchester United is once again the backdrop.

According to statistics, Manchester United has invested a net of 1 billion euros in the transfer market in the past 10 years, an average of 100 million euros per year. To be honest, the investment in the winter window is generally not very large, which means that the net investment of Manchester United in each summer window is close to 100 million euros. Judging by the value of the players, Manchester United's squad should be star-studded. But that's far from the case, with United's current squad starling clearly out of Manchester City, Liverpool and Chelsea. There are no more than 3 world-class players who can really be called a decent year of playing, and one is about to become a free agent.
This is actually the reason why Manchester United's net investment in reinforcements is so high! When buying people, there is a significant premium, and when selling people, it is a mess, and most of them are high buy and low sell.
In addition, Manchester United's net investment is so high, but the return is pitifully low. In the past 10 years, United have won a total of 6 titles. 1 league title and 1 community shield were won by Ferguson in his final year. Mourinho's minor treble, plus 1 FA Cup from Van Gaal. Ole Gunnar Solskjaer's five transfer windows were spent like dirt, with a net investment of 370 million euros, accounting for nearly 40% in the past 10 years, and successively created a number of records for various positions and the history of the winter window team, but the shadow of the champion could not be seen, and only 1 final was reached.
Greater Paris invested 941 million euros in 10 years, ranking second, with a total of 27 titles. Judging from the number of champions, the return of Greater Paris is rich, but from the perspective of the gold content of the champions, Greater Paris has not actually received the returns that the top management wants. All 27 titles are domestic champions in France, and the Champions League, which has been missing at the top, has always been out of reach.
Manchester City has invested a lot, 900 million euros in 10 years, but the return is very rich, with a total of 13 titles. In particular, after Guardiola took office, he invested a net of 471 million pounds in reinforcements, winning a total of 10 titles, including 3 Premier League titles, 2 community shields, 1 FA Cup and 4 League Cups. It is worth mentioning that 100 million of the 471 million net investment was spent on the introduction of Glalis in the summer window last year, but the 10 championships were basically won before Gralis joined. So, Guardiola put in a big deal, but it's worth it!
Barca net invested 650 million, ranking 4th, with a total of 16 titles. Among them, there is 1 Champions League, 5 La Liga champions, 5 Copa del Rey, 4 Western Super Cups and 1 European Super Cup.
Places 5 to 10 are Arsenal 583 million with 8 titles; Juve 561 million with 17 titles; Milan with 432 million with 1 title; Everton 429 million with 0 titles; Aston Villa with 424 million with 0 titles; and Chelsea with 413 million with 8 titles.
We were surprised to find that Real Madrid and Bayern, the big winners of the past 10 years, did not appear in the top 10 of the net investment in reinforcements. Among them, Real Madrid has 4 Champions Leagues, 3 La Liga titles, 4 Club World Cups, 3 European Super Cups, 3 La Liga champions, 1 Copa del Rey, 4 Western Super Cups, a total of 22 champions. Not only is it numerous, but it also contains a lot of gold. It can be seen that the operation of the real Madrid executives is very efficient and healthy, and it is a model for the giants.
Bayern has not spared much, a total of 26 champions in the past 10 years, including 2 Champions Leagues, 9 consecutive Bundesliga titles, 2 European Super Leagues, 2 Club World Cups, 5 German Cups, 6 German Super Cups, Bayern's top management has long become a good story in football.