I think Ndombele is the lynchpin here... either Højbjerg was brought in to replace him, or to help get the best out of him...Be interesting to see the line up in our first game of the season.
I think he has the attributes of a conventional CM. I don't think he can do the holding role himself.
Think Mourinho would like 2 ball winners in midfield. IMO Winks is most at danger of losing his place than Sissoko.
Anticipate this to be our midfield first game.
Hojbjerg - Sissoko
GLC
I can see Jose going with Hojbjerg, Ndombele GLC in a midfield 3... with Winks/Sissoko as back up... which to be fair, most people saw them as anyway! Sissoko has come on leaps and bounds, but I'd still rather see Ndombele prove himself...
Unless he's as good as gone, in which case, Jose will be planning for life after Ndombele!!