Liverpool goalkeeper Alisson Becker’s impressive late cameo in the Champions League final offered just a tiny glimpse of how good he will become, according to the man who watches him every day.

And John Achterberg, the Reds’ long-serving goalkeeping coach, believes no-one can now doubt the £65million spent on the Brazil international last summer was not worth the outlay.

The 26-year-old was a virtual bystander for 70 minutes at the Wanda Metropolitano as his side led 1-0 from an early penalty and opponents Tottenham struggling to lay a glove on Liverpool.