Barcelona have shown an interest in Manchester City full-back Angelino, who is available for around €30m (£25m/$33m).
The Spanish full-back spent the second half of last season on loan at RB Leipzig and helped the German club to the semi-finals of the Champions League.
Barcelona are looking to rebuild after sacking coach Quique Setien following their humiliating 8-2 defeat to Bayern Munich in the Champions League.
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Ronald Koeman has been appointed as the new coach at the Camp Nou and needs to strengthen after ,Barca also lost out on the Spanish title to Real Madrid.