Brendan Rodgers hailed the performance of Adam Lallana after Liverpool's 1-1 draw with Everton on Saturday.
Lallana missed the beginning of the season with a knee injury, but has started the last two games, and the Reds boss has been impressed with the former Southampton captain's contribution so far.
He said: "I thought he was outstanding. To come into his first derby game and play with that quality and intensity [was impressive].
"And he played the whole game in midweek against Middlesbrough. To deliver that performance was great because it shows me he's getting fitter and fitter now with each game.
"I thought his performance was outstanding."
Lallana was signed from the Saints for around £25m in the summer.