Wanted Gremio winger Ferreira appears keen on a transfer to Celtic with the Premiership champions reigniting their interest in the 25-year-old.
The Premiership champions are understood to be long-time admirers of the attacker who can play in multiple roles across the front three.
Football Scotland states Ferreira was on the Parkhead transfer radar before the arrival of Ange Postecoglou and interest has heightened in recent days.
And Brendan Rodgers won't be short on information as one of his most famous ever pupils currently shares a dressing room with him.
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