Liverpool goalkeeping coach John Achterberg is delighted with the commitment of Adrian in training.
Achterberg praised Adrian for the job he has done covering for Alisson in the UEFA Goalkeeper of the Year's absence.
He told Liverpoolfc.com: "He has done really well. Obviously he needed to adapt to the way we play, with wanting him to play out, but he's done good and picked everything up.
"We couldn't be any happier with how it's gone. He is a really nice guy, he is always positive and good to talk to. He helps the other goalies by talking with them, so it's going well. He fits in really well with the group, which is important.
"It is really difficult for anyone to replace Ali, especially when you've not had a chance to settle and pick everything up. He had to be straight in after maybe four or five sessions. Then we had two more sessions, played the Super Cup final and then he got the injury, so there was not a lot of time to do extra training.
"Coming to Liverpool, there are high expectations but he has dealt with them really well. He has stayed calm and relaxed and shown a positive, confident manner, which helps the team a lot."