For what it is worth, we all seem to agree that if Graelish is to come, someone has to leave. If we are to also sign a striker, that is actually a matter of fact, given our current squad.
At the moment, I find that more likely to be Fernandinho whoose contract runs out in 4 days and is yet to be renewed, than Bernardo, who has years left on his and some spanish guy has claimed is unhappy.
As it stands, at least, obviously all can change.
Edit. not claiming that as a like for like replacement, before anyone lectures me on positions.