The Brazilian put pen to paper on a new long term deal yesterday and after doing so told the club's official website liverpoolfc.tv that it was a simple decision to make.
"For me it was an easy decision because I know how big Liverpool is and I can see Liverpool are committed to me and are planning for a future with me. The effort from the club was amazing and that makes me feel an important player. That's why it was an easy decision," he said.
"I am really, really happy. The last few weeks have been really good for me and now I have signed a new contract and can spend more years at Liverpool I will do my best all the time and try to help the club to be bigger and bigger, if that's possible.
"Everyone wants to be in the Champions League again and to win titles. That is what Liverpool is about. The way everything is going I think it will be a very good next few seasons.
"We have some new players who have come here and that shows we are moving in the right direction. I am pleased with the way Liverpool tried to keep me and now I want to keep doing my best for them.
"I don't think people thought I could stay here for so long, but now I want to just keep on improving."