Rafinha is delighted to return to Barcelona.
The midfielder spent last season on-loan at Celta Vigo, where he played for new Barca coach Luis Enrique.
â€œI learned the game for seven years here and Iâ€™m thrilled to be back, itâ€™s a great challenge for me â€¦ I want to learn from these brilliant players," he said.
"Luis Enrique is someone who does everything to make sure he does things well."
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