Jurgen Klopp says Sadio Mane is back to his very best ahead of Liverpool's trip to Swansea City on Monday night.
The Senegalese winger did not score in December as he struggled to replicate his dazzling start to the season.
But a stunning left-footed effort from Mane helped Liverpool win 2-1 at Burnley on New Year's Day, and a similar strike in the recent 4-3 victory over Manchester City took his tally to six Premier League goals this season.
Klopp told Liverpool's official website: "At Burnley he scored a fantastic goal but it was not a world-class game of Sadio.
"Since then it has clicked and he is now really back. He works hard, he protects the ball pretty well, no risky dribbling, and he is a world-class player."