Touted as one of Brazil's great prospects, Arthur Melo has since lost some of his "magic", but a move to Liverpool could kickstart his career and solve the Reds' midfield dilemma.
Manager Jurgen Klopp hoped to bring in a new midfielder this window and said the one he wanted got away, as Aurelien Tchouameni joined Real Madrid in a deal reportedly worth up to £86m.
Liverpool have also been repeatedly linked with a move for Borussia Dortmund's England international Jude Bellingham next summer, and Klopp has said he "would like to risk a bit more" in the market, but the Reds have a careful transfer strategy.