Barca want €16m to sell the midfielder, whose contract expires in June.
Earlier this week, Barca coach Ronald Koeman stated: "For players who do not see many possibilities, it is better to look for a way out. I know Rafinha has been on loan and there is a point where you can't be loaned every season.
"We have a lot of midfielders, we have to find the best for the team. These are technical decisions."