The 24-year old former Manchester City man made it four matches in a row without scoring in Wednesday night's 1-0 Champions League loss to FC Basel to see his tally remain at one goal from seven appearances in all competitions since arriving from AC Milan in the summer.
Balotelli toiled hard up front by himself for the Reds but was frustrated by the Basel defence and Rodgers admits he needs to bring something extra to his game if he wants to regularly hit the scoresheet.
"He worked hard, (but) needs to do more. He will be judged on what he creates and what he scores and he didn't score," he told Sky Sports 5 after the defeat.
"The boy is trying, he is working hard."
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