Moses is all glee for Hazard, after the dashing winger-cum-midfielder hit his 100th and 101st goals from 322 Cheslea appearances in a 2-1 win at Watford on Boxing Day.
"But for me it's very important and if Cesc will go I think that we need to buy another player, and it's not easy because, technically, Cesc is a very important player". I am not in charge of the market. I want to speak to him only about the position on the pitch.
With both Olivier Giroud and Alvaro Morata misfiring for the Blues up front, Sarri has utilised Hazard in a false nine position in recent weeks and became frustrated when questioned over his decision to do so.
"He is a great player", Sarri continued. "I am really very happy with him in this position because he is very able to score and to open spaces for the team-mates". He is able to come and play with the teammates.
That admiration is simply for a club he knows not everyone will get the chance to play for and where places are reserved for the best, so not moving to Real Madrid last summer hurt him. "It's not serious but I don't think he'll be able to play in the next match", Sarri told reporters on Friday.
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There was a time when Man City's goalscoring form meant they had a so-called "extra point" with their superior goal difference; that has now been wiped out by the Reds' near-impregnable defence.
"I don't know if he prefers to play as a winger or striker".
The 31-year-old has seen his role at Stamford Bridge reduced this season, as the off-season additions of Jorginho and Mateo Kovacic have pushed Fabregas down the pecking order.
"I don't know if Hudson-Odoi is able for the Premier League at 18, especially in a big team", he said.
One player Sarri will not have the services of for the trip to Palace on Sunday afternoon (Sunday evening AEDT) and likely the visit of Southampton and the FA Cup tie with Nottingham Forest is Pedro.
According to Sarri, Pedro has a hamstring injury and the Spaniard will be out of action in the next ten days, while Hudson-Odoi has a slight knock.