Chelsea have reportedly received an offer to sign Atletico Madrid duo Joao Felix and Matheus Cunha in the January transfer window.
The Blues are in the market for a striker following the news that Armando Broja has been ruled out for the rest of the season and have already made contact with Molde forward Datro Fofana.
According to the Evening Standard, Felix has fallen out with manager Diego Simeone and could leave on loan in January but any temporary deal for Felix would require a significant loan fee and an option to buy him next summer.
In terms of Cunha, Wolverhampton Wanderers and Leeds United are concerned that Chelsea could hijack a deal for the Brazilian forward, who has been told he can leave the Spanish club in January.
It also states that Barcelona's Memphis Depay is further option, as is Borussia Dortmund's young starlet Youssoufa Moukoko - as the Blues explore both short and long-term options.
Felix has struggled for regular game time this year due to his fallout with Simeone, with only four goals and three assists in 18 games, whereas Cunha has endured a goalless campaign after 17 appearances.