Jurgen Klopp joked that Adrian’s mistake during Liverpool win over Southampton was a "rite of passage" - in typically jovial fashion as the Reds ran out 2-1 winners at St. Mary's on Saturday.
The Spanish goalkeeper overcame an ankle injury suffered when a pitch invader slid into him during the celebrations of their Super Cup win against Chelsea in Istanbul on Wednesday, to take his place in the side.
But after Sadio Mane and Roberto Firmino goals had put Liverpool in control, he handed Southampton a lifeline as he dallied on a backpass which was charged down by Danny Ings and ended up in the back of the net.