Whilst Paul Pogba's record breaking transfer to Manchester United has pushed the side's summer spending ever closer to the £200million mark, it has also given Jose Mourinho a title of his own.
The €100 million transfer, as well as being enough to buy 1 billion Freddo's, has also pushed Jose Mourinho past the €100 billion mark for the amount that has been spent on new players under his managership.
He has not been shy to splash the cash during his time as manager, with Real Madrid, Inter Milan, Chelsea and Manchester United all giving the Portuguese man the funds to bring success to their club.
He has always had an eye for a top talent, and so some of those transfers have gone on to do big things under the maestro manager.
We've brought you the worst five <link to five worst article> transfers of the €1 billion, and now it is time to rank the five best.
With that, here are FIVE of the BEST transfers of Jose Mourinho's €1billion spending spree
Didier Drogba
Nobody can doubt the fact that Didier Drogba was one of Jose Mourinho's best signings - in fact he may go on to become one of the best signings of all time.
Signed for around £25million in 2004, Didier Drogba went on to become a Chelsea icon.
Countless goals lead Chelsea to numerous Premier League trophies, and after the departure of Jose Mourinho Drogba went on to lead the side to a Champion's League victory.
He has gone down as a Chelsea legend, topping a number of 'greatest ever player' lists for the side - and it was all down to Mourinho's brilliance.
Michael Essien
Michael Essien, signed for around £25million, went on to become one of the best central midfielders in the world for several years.
He formed a deadly midfield duo with Frank Lampard, and was a big part of why Chelsea achieved so much success in the late noughties.
His career was cut short due to injury, but for the best part of seven years Essien was an absolute marauder in the midfield, and like Drogba has gone down in history as one of the Chelsea greats.
Once again, it was Mourinho that found the young Ghanian and brought him to the Bridge.
Ashley Cole
Despite the scandal that ensued surrounding this transfer, it is still baffling how Mourinho managed to pull this one off.
Easily one of the best in the world when Mourinho signed him, he was brought in for just £5 million and William Gallas; and he went on to become possibly the best left back of all time.
He was a constant in the Chelsea team for the best part of a decade, winning numerous trophies alongside both Essien and Drogba - and going down in Chelsea folklore as one of the best to put on the shirt.
Only Jose Mourinho could mastermind such a transfer between rival clubs, and despite the issues that surrounded the transfer - it will still go down as one of the best of all time.
Diego Milito
Diego Milito seemed to be quite an innocuous centre forward; but boy could he score goals.
Jose Mourinho brought him to Inter Milan in 2009, and he quickly become a key part of an Inter side that went on to achieve one of the greatest seasons in their history.
He scored a goal in the final game of the season, and in both cup finals en route to scoring 30 goals that season and leading Inter to a historic treble; and he was a bit part of why Jose Mourinho is so revered in that part of Italy.
A signing that will go down in history.
Mesut Ozil
Following his performances at the 2010 world cup, Jose Mourinho saw fit to bring Mesut Ozil to Real Madrid, and immediately he began to make an impact.
He formed a deadly partnership with Cristiano Ronaldo, who after Ozil's sale to Arsenal, personally came out to praise Ozil and express how disappointed he was that the German maestro was leaving.
During a three year spell in Madrid he established himself as one of the side's top stars, and only left as the ever revolving Real Madrid transfer door kept swinging.
Bought for a fee of around €15 million; what a signing.