Chelsea could watch one of their recent targets join Premier League rivals West Ham United this summer. The Blues have been busy this transfer window. While it is only early July, they have already signed Kiernan Dewsbury-Hall, Marc Guiu, Omari Kellyman and Tosin Adarabioyo. They are yet to sign a striker for the senior squad, though Guiu could end up being that forward addition for the first team. In fact, it has already been claimed that he will stay to work under Enzo Maresca this upcoming season. Before his arrival, Chelsea were being heavily linked with Aston Villa’s Jhon Duran. West Ham …