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.
The 26-year-old arrives at Anfield on a season-long loan from Juventus to ease the Premier League club's growing injury concerns, with Jordan Henderson, Thiago Alcantara, Naby Keita and Alex Oxlade-Chamberlain all currently absent.
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.