Chelsea may need to increase their recent expenditure if they are to keep pace with the Premier League leaders, the Blues boss has suggested
Antonio Conte has warned Chelsea they "must be worried" by Manchester City's spending power ahead of the January transfer window.
City lead the Premier League table by eight points from Manchester United and are already 11 clear of third-placed champions Chelsea.
Pep Guardiola was able to bring in Benjamin Mendy, Kyle Walker, Bernardo Silva, Ederson and Danilo at great expense in the off-season.
And although Chelsea were also active in the market, signing Alvaro Morata, Tiemoue Bakayoko, Antonio Rudiger, Danny Drinkwater and Davide Zappacosta, there have been suggestions Conte is dissatisfied with the club's recent recruitment policy.