Jose Mourinho has reportedly set his sights on strikers Alexandre Lacazette and Antoine Griezmann in an attempt to bolster his squad before the close of the transfer window in two weeks' time.
Chelsea owner Roman Abramovich has reportedly given Mourinho permission to sign three players, with Everton defender John Stones thought to be his third target.
Lyon striker Lacazette has scored 51 goals in 139 appearances after coming through their youth setup.
Meanwhile, Griezmann, who plays for Atletico Madrid, has scored 22 goals in 37 appearances since his switch to the Spanish capital.