Chelsea have been offered the chance to sign Atletico Madrid duo Joao Felix and Matheus Cunha in January, according to Evening Standard.
The Blues are looking to sign an attacker in January after losing Armando Broja to a serious knee injury.
Chelsea will explore both short and long-term options in January, with just Pierre-Emerick Aubameyang and Kai Havertz available to lead the attack in the second half of the season.
Atletico Madrid have reportedly offered Chelsea the chance to sign Felix for £86million. Any temporary deal for Felix would require a significant loan fee and an option to buy him next summer.
Atletico Madrid are also reportedly open to allowing Brazilian forward Cunha join Chelsea in January.
Felix is represented by super-agent Jorge Mendes, who is close to new Chelsea owner Todd Boehly.
Felix impressed with Portugal at the World Cup but is keen on leaving Atletico Madrid in January after falling out with Atletico Madrid boss Diego Simeone.