Mario Balotelli couldn`t find the back of the net in Liverpool`s 1-0 away defeat to Basel in the Champions League.
Balotelli has scored one goal for the Reds since move from AC Milan and Brendan Rodgers wants the Italy international to offer more after their defeat on Wednesday night.
Rodgers told Sky Sports: "He worked hard, needs to do more."
"That's the simplicity of it, Mario will be judged on what he creates and what he scores and he didn't score.
"But the boy is trying, he is working hard."
The Liverpool manager also reflected on Raheem Sterling`s display and said he is still young and learning.
"I think Sterling is gaining lots of experience. He's still a young player. He worked very hard tonight, he obviously had a task on his hands on that side of the field and he got into some real good positions.
"Unfortunately he obviously had the goal disallowed in the first half and got himself just offside for that and, as I said, he was unfortunate.
"He had a great combination on the edge of the box, got in and his touch just got away from him but that's something that he's learning from. He's still only 19 and he's an exceptional talent."