Farfan is regarded as one of the biggest talents in South America but, at the age of 19, he would not qualify for a work permit in the UK. Therefore, Chelsea plan to sign him and then send him to PSV for a few years in order for him to gain a work permit.
Farfan's agent revealed: "I have an appointment with him to discuss the transfer to Chelsea, and I will also analyse the possibility of joining PSV Eindhoven.
Alianza's spokesman Carlos Flores said: "We have been talking to Chelsea's representatives for a couple of days. They made a serious offer and we are analysing it.
"If we close the deal with them, their idea is sending Farfan to some other team for a year, possibly PSV Eindhoven, because he has not played enough matches in the national team as the Premier League's rules require."
One such deal has already taken part, with Chelsea signing Brazilian defender Alex for PSV, with a view to taking him to Stamford Bridge in 2006.