"I still have to get used to Italian football. I needed opportunities and good fortune," said the ex-Barcelona star.
"I had the chances, a bit less of the luck and I ended up missing a very important goal. I took a while to settle in at Barcelona too.
"Physically I am not yet 100 per cent and I struggled in some sections of the game, but I also converted a penalty. I have a good feeling about this."
Next weekend he faces the added pressure of the Milan derby against his former Blaugrana teammate Ronaldinho.
"I am not afraid of the Rossoneri. These are the games every player dreams of taking part in."