Goalkeeper Lopez, who is on loan at Espanyol from AC Milan, has been talked up as a replacement for Asmir Begovic at Stamford Bridge.
Begovic, who is serving as Thibaut Courtois' deputy, is keen to play more regularly and Chelsea reportedly rejected a bid from Bournemouth for the Bosnia-Herzegovina international.
Lopez has been touted as a replacement for Begovic but, when asked about Chelsea's apparent interest, the 35-year-old said: "It affects me positively.
"This kind of news is good for me because it's a recognition of my job. But beyond that I am calm and focus on Espanyol until the 30th of June."
"Nothing is going to happen until 30 June and from there AC Milan and Espanyol will have to give a step forward but I have repeated what I want.
"If Espanyol want me they already know my intentions but they will need to reach an agreement [with Milan].
"At times, we are a bit selfish but I am honest and I thank the club because they had confidence on me in a difficult moment."