Lee added that City are "unwilling" to part with that amount, although according to James Olley of the Evening Standard, Arsenal want even more than the sum quoted, with a valuation of £40 million said to have been placed on Sanchez.
Sanchez has also attracted interest from a number of other clubs including Paris Saint-Germain, who are free to negotiate with his representatives directly given he has entered the final six months of his contract at Arsenal.
City now lead the league by 15 points over their eternal rivals Manchester United, and the addition of Sanchez to their already stacked squad would make them an even more frightening prospect.
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Sanchez was close to joining City in the summer on transfer deadline day until Arsenal pulled the plug on a £60 million deal late in the day.
For Arsenal, the position is unenviable.
It's why, as galling as it may be, the club may feel the sensible course of action is to take what they can in January and try to reinvest in the squad.
Sanchez may have scored 24 goals in the Premier League last season but it seems that his market fee is lower than many expect.
It comes as a major boost to City, as it means he will not be cup-tied for the later rounds. Sanchez would strengthen the already frighteningly good City attack, and act as cover whilst Gabriel Jesus recovers. It is possible that a compromise could be reached.