Manchester City are prepared to walk away from a deal to sign Arsenal's Alexis Sanchez.
The Premier League leaders feel the overall price for signing the Chile forward this month - transfer fee, agent costs and wage demands - is currently too high and must come down.
City are not concerned if this stance opens up a route for another club, even arch-rivals Manchester United, to step in.
Jose Mourinho said: "At the general level, what I can say is that myself and the Manchester United board, we don't believe a lot in the January market. We don't believe in signing players just to sign a player, just to do something. We don't believe in that.
"What we believe really is that there are some players in the football world, if you have a chance to sign them, it doesn't matter if it is in January, March or July, you have to try.
"But in relation to Alexis Sanchez, I don't say a word. The only word I can say is the same word that everybody says, he's a phenomenal player.
"Apart from that, (he's an) Arsenal player, I feel I shouldn't say much more than this."
Sanchez has long been a target for City and they offered £60million for the 29-year-old, without success, last summer. They would now hope to do a deal for a fee of around £20million but are understood to have been quoted £35million.
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