Chelsea are reportedly monitoring Monaco trio Benjamin Mendy, Bernardo Silva and Tiemoué Bakayoko ahead of the summer transfer window.
Blues boss Antonio Conte will look to add more strength in depth to his squad ahead of the return of Champions League football to west London next season and would appear to be keen on raiding the Stade Louis II to improve his options.
According to reports, Chelsea are ready to pay £40million to complete a double swoop for left-back Mendy and midfielder Silva, both of whom have shone for Monaco in Ligue 1 and the Champions League this season.
Meanwhile, speculation in France has claimed the Blues are leading the race to sign central midfielder Bakayoko, who has attracted the attention of several Premier League clubs, including Manchester United.
Bakayoko, who received his first call-up to the France squad this week, is valued at 60million euros by Monaco.