Defending champions Manchester City beat Leicester City on penalties to earn their place in the semi-finals.
"We are certainly not anticipating losing players in January that we don't want to".
The 31-year-old right-winger has the pace and trickery to cause havoc against Leicester, especially considering they are waiting for a late fitness test on first-choice left-back Ben Chilwell.
"At the beginning of the season he was a very good player and now he is a good player that is more suited to my style of football".
"I don't think it makes too much difference being away in the first leg".
The first legs are set to be played on the week commencing Monday, 7 January, with the return matches are scheduled for the week commencing Monday 21, January.
"Financial considerations for us as this stage are the main thing but it's also something for everyone to look forward to".More news: Police arrest fiancé of missing Colorado mother
More news: We Could Blow You Away, Liverpool Legend Warns Manchester United
More news: 'Players get away with murder' - Keane blames stars for Mourinho sacking
Sarri said: "There isn't the best position for Hazard".
"But what is important are the League One games before then. The only player around me was Alvaro Morata, so if we wanted to win we had to do something together, just me and him".
League One side Burton are now 15th in the table and booked their place in the semi-final with a 1-0 win away at Middlesbrough this week.
"This will be our fourth London derby".
Former Chelsea FC striker Zola, who is now working as Sarri's assistant manager, opened up about his desire to see Hazard remain at Stamford Bridge in the long term.