Jose Mourinho has spent a whopping £1.6billion on transfer throughout his career - but that doesn't come close to the highest-spending manager of all time.
The Portuguese tactician has been sacked by Roma despite requesting a new contract, with the club sitting ninth and off to their worst start in Serie A since 2002/03.
Mourinho has managed some of the biggest clubs in the world and therefore some with the loosest purse strings.
A £100million outlay on Paul Pogba and a £75m splurge on Romelu Lukaku at Manchester United are his two priciest purchases, but he has also spent lavish sums with Chelsea, Real Madrid, Inter Milan, and Tottenham.