I think it's Kovacic OR Serri.
3 man midfield, you're looking at 5/6 players, plus maybe a young option used sparingly (which RLC doesn't want)
So:
Kante
Golovin
Serri/Kovacic
and 2/3 out of: Fabregas (unmoveable), Baks, Drinkwater, RLC, Barkley
Can see RLC out on loan again.
We'll see what happens. I'm pretty sure that we'll get Golovin, maybe Serri, doubtful on Kovacic (maybe we can do a Courtois swap if we're really interested).