Barcelona boss Pep Guardiola admits the return to full fitness of Xavi is crucial to their plans.
Xavi was back for their 5-0 thrashing of Sevilla.
"He has come through fantastically well," the coach said.
"I spoke to him and he said he felt great. No problems at all. The physiotherapists have worked for so many hours with him and they have done a great job with him, as have the doctors.
"He is feeling good and that's great news for us - he will be ready for Tuesday."
