Luis Diaz makes cameo and Harvey Elliott returns as Liverpool brush aside Cardiff

New £37.5million signing Luis Diaz gave Anfield a glimpse of what he can offer with an encouraging 30-minute cameo in Liverpool's 3-1 FA Cup fourth-round win over Cardiff.

The Colombia international only met his team-mates for the first time on Friday having waited in Paris most of the week for his visa to come through following his move from Porto last Sunday.

But there was no lacking in determination or invention as he played a significant role in the decisive second goal for Takumi Minamino, after Diogo Jota's 15th of the season had made the breakthrough.

However, not to be outdone 18-year-old Harvey Elliott announced his return after five months out with an ankle fracture dislocation with a brilliant swivelled finish in front of the Kop - his first goal for the club.

Cardiff substitute Rubin Colwill scored an 80th-minute consolation for the visitors with a smart finish past Republic of Ireland goalkeeper Caominhin Kelleher, who was enjoying his seventh appearance of the season in all competitions, but a place in the last-16 - and a home tie against Norwich - for only the second time in Jurgen Klopp's reign was never in doubt.

The only concern came late on when Diaz went down holding his knee after Cardiff captain Aden Flint accidentally landed on him - but the 25-year-old was able to finish the game after treatment.

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A late run out for midfielder Thiago Alcantara, after six weeks out with a hip problem, and Africa Cup of Nations finalists Mohamed Salah and Sadio Mane due back before Thursday's Premier League visit of Leicester means Liverpool's contention in four competitions is looking as strong as it has all season.

Strong was not a word associated with Cardiff's team as they made eight changes from