Lallana believes Ramirez is already starting to pay back his lofty price tag and predicts there is even more to come from the new boy.
"We started a little bit sloppily in the first 10 minutes but when we got into the game and found our feet we were creating chances," he said. "It could have been four or five goals.
"My goal came as Clyney (Nathaniel Clyne) had a shot from distance but then the composure Ramirez showed to set me up was brilliant.
"He is a top-class player and the more he finds his feet he will take this league by storm.
"We're learning off him. He has great ability, that continental flair."