"It's very hard. The gap last season was 30 points (between fifth-place Chelsea's 70 and City's 100) so to go above 30 points in one season is very, very hard".
"I am open to the idea [of him returning], of course".
Chelsea are favourites to maintain their flawless start to the league season at Stamford Bridge against Neil Warnock's men, who are winless in their opening four games.
'I think they should loan us him and I could help him as well, ' Warnock said at his pre-match press conference.
"I think that at the moment Fabregas can be on the bench, but I want to speak to him, I think maybe it is better to have two days of training".
"I'm trying to stress this number to my players, just telling them this number, my experience in this situation".
The 30-year-old's hopes of securing a new two-year deal are, however, complicated by Chelsea's policy of usually only offering one-year contracts to players who are 30 or over.
Both Spanish giants were reported to have expressed an interest in signing the winger, but the player himself has claimed that he never wanted to leave Stamford Bridge.
Winterburn has been impressed by the impact Sarri has made in west London and says he could transform them into a "sensational" team. "Mentally after the (international) break it is hard", said the 59-year-old Italian. My feeling is that now we are not a very solid team in the defensive phase.
"I'm sure he'll be able to prove how good he is and show what he did at Monaco".
"Manchester City, Manchester United, and also the smaller teams have good players".