Zaha impressed again this weekend with a superb performance including a well-taken goal in his side's 3-0 win over Leicester that took Roy Hodgson's men outside the relegation zone for the first time since August.
Wilfried Zaha stood as one of the English game's hottest prospects when he signed for Manchester United for 15 million pounds from Crystal Palace back in 2013 but after two years at one of the Premier League's most prestigious clubs it became clear that Zaha was simply not ready for the big-time.
Rio Ferdinand recently broke down exactly why Wilfried Zaha's time at Manchester United before rejoining Crystal Palace was unsuccessful.
With Palace now beginning to turn their form around under new manager Roy Hodgson, and this upturn unsurprisingly coinciding with the form of the Ivorian global, other clubs are taking notice of Zaha once again.
The same article states that the Blues are now weighing up a possible bid to sign the exciting 25-year-old attacker ahead of the January transfer window.
It's understood both Arsenal and Tottenham are also keen on the Zaha. He rejoined the Eagles in 2014 initially on loan before moving back to Selhurst Park permanently in the summer of 2015, after being surplus to requirements from United boss Louis van Gaal.
Arsenal forward Sanchez is out of contract at the end of the season, but City will face heavy competition from other top European clubs, notably French leaders Paris Saint-Germain, leaving Zaha as a viable alternative.