"I think we are close to getting a trophy but it's very difficult," said the Spanish striker.
"In football at the moment unfortunately money is really important. Clubs like Manchester United, Chelsea and Manchester City have a lot of money to spend on good players.
That's not the way at Liverpool so we have to try to improve. If we are going to get the opportunity to win a trophy we have to do things better than ever. We are ready for the challenge."