Stamford Bridge side line-up Upton Park swoop.
Chelsea are reportedly looking to pull off something of a surprise Upton Park raid according to the Daily Mirror.
Read more Chelsea transfer rumours.
According to this source Jose Mourinho is keen on luring West Ham star Enner Valencia into making a move from east to west London just months since moving to the Hammers.
The Metro claim the Blues will offer £21m for the Ecuadorian, who cost Sam Allardyce’s side £12m last July.
Valencia impressed at the 2014 World Cup finals, netting three goals, before moving to West Ham and the South American has made an instant impact in the English top tier and as a result has clearly attracted Mourinho’s attention.
Chelsea’s interest in Valencia comes as Mourinho looks set to offload Andre Schurrle and Mohamed Salah and could be a move to freshen up his options in the final third.