Where have you heard of Chelsea's interest? It sounds incredibly unlikely to me.
We've been heavily linked to him since we knew Hazard was off, from a wide variety of media outlets...
https://www.theguardian.com/football/2019/dec/11/chelsea-wilfried-zaha-crystal-palace-nathan-ake
https://metro.co.uk/2019/12/05/chelsea-talks-sign-wilfried-zaha-crystal-palace-11278099/
https://www.thesun.co.uk/sport/foot...-ban-overturned-jadon-sancho-monitored-blues/
https://www.dailymail.co.uk/sport/f...tal-Palace-pay-80m-Wilfried-Zaha-January.html
https://www.independent.co.uk/sport...-zaha-crystal-palace-latest-epl-a9234451.html
https://www.mirror.co.uk/sport/football/news/wilfried-zahas-agent-fuels-january-21037301
https://www.fourfourtwo.com/news/chelsea-crystal-palace-wilfried-zaha-agent-talks