Although it was a record transfer window for Premier League teams, not all of the summer signings have been a success.
Here, we look at four of the most disappointing acquisitions based on their performances so far this season.
Although he was a low key signing, Fazio has missed the opportunity to establish himself at the heart of Tottenham's defence. Spurs boss Mauricio Pochettino clearly doesn't trust Vlad Chiriches, and Jan Vertonghen has only played a bit-part role so far.
Fazio however, has the same amount of red cards for Tottenham this season as he's kept clean sheets (2). His recklessness looks like it will cost Spurs in the big games; Sergio Aguero left him for dead at the Etihad.
What's surprising is that Pochettino replaced one slow defender, in Michael Dawson, with another. He would be an outstanding defender if opposing teams constantly crossed the ball into the box - he's a giant of a man - but opposing teams normally tend to counter-attack Tottenham, and Fazio is simply not mobile enough to cope.
As far as transfer sagas go, Tom Ince's was one for the highlight reel. Since January, when it was rumoured he was leaving Blackpool, he has been linked with just about everybody in Europe. An underwhelming six month loan stint at Crystal Palace didn't put Steve Bruce off and he added Ince to a Hull team already filled with British talent.
Three mediocre appearances later and he has once again found himself in the second tier of English football with Nottingham Forrest.
Hull City have a wealth of offensive talent, Hatem Ben Arfa and Gaston Ramirez both operate in a similar role to Ince, and he has failed to make his mark on the team.
Ince was at his best in the Championship when he ran at defenders; he was a player who made things happen. At Hull, however, he looks like a player deprived of confidence. Hull's recent performances have been ordinary at best; Ince will never have a better chance to stand out.
It's difficult to see Ince regaining a place in Steve Bruce's team anytime soon.
For all of Manchester City's attacking flair, their main concern for a number of years has been the fact that they have had nobody to partner Vincent Kompany. Joleon Lescott, Matija Nastasić and Martin Demichelis have all tried and failed and sadly so has Mangala.
He looks completely nervous at the back. If the opposition attack and aren't afraid to run at the City defence, they look vulnerable. He was torn to shreds against West Ham and his performance against QPR wasn't much better.
Man City are already eight points worse off than at this stage last season and are falling further and further behind leaders Chelsea. They can't solely rely on Vincent Kompany to provide Joe Hart with protection. If Mangala doesn't improve, the Citizens have no chance of successfully defending their crown.
In all fairness, I could have picked any number of Liverpool's summer signings but big things were expected of Mario Balotelli. Unfortunately for the Italian, his stint on Merseyside has been a disaster so far.
Two goals in twelve games, none of which were in the league, is simply not enough. Add to that a £16million transfer fee and a highly publicised half time shirt swap and he is just not delivering.
It was always going to be impossible for Brendan Rogers to replace Luis Suarez but Balotelli is simply not the man to do so. For all of Suarez's genius, he was a hard worker too. But Balotelli is just not putting in the same amount of effort. It looks like a huge challenge for him to win over the Liverpool fans. Daniel Sturridge can't return quick enough.
Do you agree with our selections? Who do you think has been a disappointing summer signing so far? Let us know in the comments below!