Chelsea boss Graham Potter is set to sell three star players this month as part of the club's clearout.
The Blues have been heavy spenders in the transfer market this winter, especially on younger players.
Per The Athletic, three first team stars could leave to balance the books and make room in Potter's squad.
Aston Villa want to sign Pierre-Emerick Aubameyang, while Sky Germany adds that Kai Havertz may leave Chelsea.
In addition, Tiemoue Bakayoko may depart the club, five years after he last played a game for the Blues.
Chelsea have secured the likes of Mykhailo Mudryk, Noni Madueke and Joao Felix this winter.