The 22-year-old was withdrawn from Sevilla’s squad for Tuesday night’s European Super Cup Final against Real Madrid after Liverpool agreed a reported £12 million fee with the La Liga side.
An announcement from LFC on Tuesday evening confirmed earlier reports that the deal had been agreed and that they will now proceed with the formalities of the deal.
The agreement brings to a close the longest running transfer saga of the summer, with Liverpool having held talks with Sevilla since before the World Cup.
Moreno was seen in tears with his Sevilla team mates at the end of the Super Cup defeat to Real Madrid in Cardiff, clearly emotional at leaving his hometown club.
Sevilla boss Unai Emery told reporters: “This has been in the offing for a month and a half.
“We are in England and close to teams that are interested in Alberto. We want to wish him all the best.”
Manager Brendan Rodgers will be hoping that Moreno can provide a long-term solution to the left-back area, a position which has proved troublesome at Anfield in recent times.