Top 10 highest-spending managers in history based on transfer expenditure: Emery is in

Transfer fees are escalating at an alarming rate due to market inflation, but which managers have spent more in history.

10. Unai Emery - £634.23m

Players purchased: 63 for six different clubs

9. Rafael Benitez - £677.42m

Players purchased: 92 for seven different clubs

8. Claudio Ranieri - £720.93m

Players purchased: 95 for 11 different clubs

7. Roberto Mancini - £721.41m

Players purchased: 79 for six different clubs

6. Arsene Wenger - £867.38m

Players purchased: 103 for four different clubs

5. Massimiliano Allegri - £914m

Players purchased: 87 for three different clubs

4. Manuel Pellegrini - £949.14m

Players purchased: 82 for nine different clubs

3. Pep Guardiola - £1.03bn

Players purchased: 52 for four different clubs

2. Carlo Ancelotti - £1.11bn

Players purchased: 85 for eight different clubs

1. Jose Mourinho - £1.40bn

Players purchased: 97 for seven different clubs

Unai Emery confirms Arsenal are working on contract extensions for two key players