Manchester United are among clubs monitoring Gary Cahill's situation at Chelsea.
The Sun says the Chelsea centre-back, 32, will ask for a move in January if he fails to secure regular football under boss Maurizio Sarri.
And his situation has alerted a host of teams, with Sheffield Wednesday looking at a sentimental move for the childhood Owls fan.
Aston Villa are among other Championship suitors — but Cahill believes he can still perform in the top flight.
Manchester United boss Jose Mourinho is a big fan of Cahill and is looking to bolster his options at the heart of his defence.
He will monitor the 61-cap England star's situation ahead of the winter transfer window.
Cahill has not started a Prem game this season.