Liverpool had talks with two other goalkeeper before signing of Adrian as a back-up to Alisson.
It has been a few weeks of madness in the goalkeeping department with the Merseyside Reds ever since Jurgen Klopp allowed Belgian stopper Simon Mignolet to make £6.4m Cercle Brugge.
The Belgium international was keen on to depart from Anfield as he was keen on to secure regular first-team football.
And the Merseyside Reds wasted no time in finding a replacement luring free agent Adrian.
The former West Ham stopper was released from the Hammers six years in east London, playing over 150 Premier League games.
The Merseyside Reds were confident that the Spaniard would be an asset in the English top-tier and would be able to call on his experience if he was needed.
And just days after making a move, he was forced to make his Premier League debut after Alisson suffered an innocuous-looking injury in the opener against newly promoted team Norwich City.
Tests have revealed that the South American star could be out for eight weeks or so, with Adrian now has been the Reds no.1 option.
Then in his next game, he was the hero as the Merseyside Reds beat the blues on penalties in the UEFA Super Cup final in Istanbul, before he made his full Premier League debut in a 2-1 victory against Southampton.
It could have been a different story for Adrian with Liverpool have had talks with Pepe Reina and Alex McCarthy over a possible move to Anfield.
Reina spent eight years at Anfield before going on to play for Bayern Munich, Napoli before Milan.