Juventus and Barcelona are reportedly among the clubs interested in signing Antonio Rudiger at the turn of the year.
He has only got starts when either of them has been rested and ESPN claims that that may pave the way for a winter exit.
Rudiger is aware that he needs regular first-team football in order to boost his chances of featuring for Germany at Euro 2020 next summer.
Earlier last month, Barcelona were credited with an interest and it is now revealed that Juventus have joined the pursuit of his signature.
Elsewhere, AC Milan are also said to be weighing up a mid-season move as they look to boost their title credentials.
Rudiger has more than three years remaining on his contract with the Blues. He could be available for around £35m in January.