Both clubs have identified Alberto Moreno as a perfect replacement for their aging left backs, namely Ashley Cole and Evra.
Reports in Spain claim the Old Trafford outfit are scouting around for alternatives to Leighton Baines as doubt remain over whether he can be seen as a long-term solution at the age of 28.
Roman Abramovich is thought to be ready to spend big to land a solid solution to the phasing out of Cole and will look to bring Moreno to Stamford Bridge in the New Year.
Jose Mourinho could use Moreno in the Champions League
“It is a personal thing. It is not that Manchester United do not want me to sign a new contract.
“Manchester United would like me to finish my career there, but this is something personal.”