Ivan Rakitic was delighted to make a winning debut for Barcelona in victory over Elche.
Lionel Messi struck twice in the 3-0 win.
"It's so much easier playing alongside the best players in the world, but this was just the first step. I have a lot still to do. Luis Enrique has worked out all of the details but there is a lot that needs to be improved," said Rakitic.
"It is a joy for all of us to be able to play alongside Messi.
"I want to play my football, but I won't get anything for free. I have to work hard."
