Chelsea view Sergio Aguero as a possible target if they are unable to sign Erling Haaland of Borussia Dortmund.
Aguero will leave Manchester City this summer and Barcelona are currently considered the favorites to sign him.
It is unclear if Aguero would consider playing for another English club after spending 10 years at City.
Chelsea\'s top priority is believed to be Haaland.
Via James Olley/ESPN