Especially if we get CL I don't see us heading in to the season with the current midfield plus Sarr - There may be potential in him but Conte is going to want tried and trusted, I don't think a scenario where one long injury would have us relying on a kid or Winks to be a able to make a change in a big midweek game is "us covered" at all, not if we want to do anything serious.
My dream transfer scenario midfield wise would be Winks leaving, Phillips coming in to replace him and Sarr having a productive loan spell in English football, ideally playing as part of a midfield pairing in a similar set up to ours. I've also come round on the potential Eriksen return, seen it mentioned about him being in CM against teams shutting up shop and can see it working.
However I understand that there'd be a lot of competition for Phillips and also other areas we need to invest in, was Brozovic on a free? Can't remember which other CMs / DMs will have just one year left on the contract or on a bosman.