Manchester United, City and Liverpool have led the way in this summer’s spending and the Portuguese insists his side must keep pace “without the big investments”
Jose Mourinho has accused Chelsea’s Premier League rivals of “buying” the title.
Manchester United have made significant strides to improve their squad ahead of the new season with the arrivals of Memphis Depay, Bastian Schweinsteiger, Morgan Schneiderlin and Matteo Darmian.
City have also been active with the signings of Raheem Sterling for £49 million, Fabian Delph in an £8m deal from Aston Villa, and Patrick Roberts – an £11m acquisition from Fulham.
Liverpool, meanwhile, took their summer spending to over £80m with the £32.5m deal for Christian Benteke, who was their seventh signing of the transfer window.
Following Roman Abramovich’s takeover at Stamford Bridge in 2003, Chelsea had been accused of spending their way to success after winning the Premier League title two years later under Mourinho, but the Portuguese now insists other clubs are doing the same thing.
“In the beginning of Mr Abramovich coming to Chelsea, Chelsea was buying the title,” said Mourinho.
“Now, they are buying the title. All of them, they are buying the title.
“It is up to us to be strong and to fight them and, obviously, to try and win it again, even without the big investments.”