Midfielder Xavi admits he is still struggling with an ankle injury after returning for Barcelona on Saturday.
The playmaker withdrew from the Spain squad for their recent Euro 2012 qualifiers due to pain in his Achilles tendons.
He made his comeback for Barca in their Primera Liga clash against Valencia, setting up both goals as his side secured an important 2-1 win.
However, 30-year-old Xavi admits the problem is still troubling him, telling Barca TV: "I'm well but they still bother me. I hope I get over it soon.
"I started well (against Valencia) but as the minutes passed I could feel the strain on my tendons.
"It's a battle I have but thanks to the doctors and physios who look after me I'm sure I'll get over it soon."
Barca coach Pep Guardiola, who substituted Xavi after 77 minutes on Saturday, added: "He isn't ready to play every three days."
The Spanish club, who currently sit second in the Primera Liga standings, host Copenhagen in UEFA Champions League action on Wednesday.