Paulinho is in Brazil, passing a fortnight under quarantine with his family because of coronavirus.
"Now I have to be in China but we can't come in because the government has closed the borders, so I'm at home, waiting for new news," he told RAC1.
"I tried to come back before they shut the borders but it was impossible, despite my club, whom I speak with each day, doing everything to try it."
Paulinho said, of Barca: "I have great memories of my time at Barca from that year, they are a spectacular club."
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