That's the thing Klopp was talking about - the CAS decision regarding Man City's spending will open the gates to clubs who can spend.
Chelsea has money, Havertz is a top prospect, it makes sense from their standpoint.
I'm not sure if Chelsea's the right club for Havertz, him and Werner don't seem like a good offensive partnership - at least not on paper. But maybe Chelsea plans to play with a '10', now they will have both width and rotation depth with Ziyech transfer.
Lampard played 10 for Chelsea at times, it might be a system he remembers fondly. And Havertz has the potential to be one of the best 10's around.