Spain international Diego Costa has reportedly turned down an improved contract offer at Stamford Bridge.
Barcelona defender Gerard Pique has reportedly been urged to make a move to the Premier League in the January transfer window.
Premier League leaders Chelsea are prepared to part ways with Diego Costa, should he demand a transfer away from Stamford Bridge.
Manchester United head coach Jose Mourinho is keen on a reunion with Chelsea midfielder Nemanja Matic.
Manchester United have reportedly in talks over a winter deal for reported Chelsea and Everton target Franck Kessie.