The 28-year-old have joined Chelsea on a free transfer from German giants Bayern Munich.
Pizarro told Chelsea TV: “I think it’s very important for me to win titles and I have the chance here to win them.
“The most important thing is the Champions League, which I was looking to win with Bayern but we didn’t have the chance.”
Pizarro added: “I think we have a good team, a good trainer and a chance to win it.
“I had some interesting offers, but the most important thing was that I talked to the coach, I talked to the people here and they were very interested. We have many chances to win titles here and that’s what I want.”