Sarri has come in and transformed Chelsea, who are undefeated in 12 games in all competition, and the switch in formation to 4-3-3 has seen Moses lose his place, with the club's good form hindering opportunities for reserve players.
"The problem will be on Sunday, because on Sunday we will play after 65 hours". This little problem, I don't know how to solve it.
Sources told ESPN FC on Tuesday that Alonso would commit to a new deal which puts him on significantly improved financial terms. I told him at the beginning of the season I thought he was really a very good player. It's very hard for me to put in the starting XI two [such] offensive midfielders at the same time. With Jorginho and N'Golo Kante sure starters in the side, Loftus-Cheek is left to battle it out with Mateo Kovacic and Ross Barkley for the third midfield position. Now I think the same, but now he's now more suitable to my football.
"He is improving. He needs to improve defensively, but not only Loftus".More news: Taiwan train crash deadliest in decades
And now fans have started wondering if Patrice Evra is planning to make a return back to Manchester United in a managerial role. He was in the academy so that's normal.
And Sarri, whose side remain unbeaten after nine Premier League games, remains confident that Alonso can become one of the top defenders in the world at Chelsea FC.
The hat-trick was the first by a Chelsea player in Europe since Didier Drogba's against Levski Sofia in 2006 - and the first by an Englishman since Harry Kane for Tottenham against Asteras Tripolis four years ago.
"We have a tactical problem with the midfielders".