Sarri's side remain in fourth place, but they are now just three points ahead of fifth-placed Arsenal.
This arrangement has deterred Chelsea from attempting to bring the player to the Premier League, with the need to negotiate with both clubs a stumbling block, as report Goal. "I think we need something different for characteristics", said Sarri.
He, therefore, stated that his side must try to solve the problem of lack of goals before the winter transfer window is over if they must progress as well.
Chelsea announced the £57 million signing of Christian Pulisic on Wednesday, though the United States global will not arrive from Borussia Dortmund until the summer, whilst the club have also been credited with an interest in AC Milan striker Gonzalo Higuaín.
He said: "On the bench I tried to do my job".
Any prolonged absence for the Frenchman will increase Sarri's reliance on Eden Hazard - deployed as a false nine in four of the past five Premier League games - and Alvaro Morata, who has struggled on and off the pitch at Chelsea since arriving at Stamford Bridge in the summer of 2017.
"I have to try to improve my players, my team, my offensive base". I have to think of the training.
But once again, former Real Madrid star Morata looked completely bereft of touch and confidence.
Bakayoko is now on loan to Milan and the Italian club have an option to sign him for €35m at the end of the campaign.
Despite dominating against Leicester, Sarri's team were beaten 1-0 as they paid the price for lacking the incisive passing and movement needed to break down the visitors' obdurate defence.
Capping a forgettable game for Chelsea, Marcos Alonso had a strong penalty appeal turned down in the closing moments.