Pep Guardiola has rejected Jurgen Klopp's observation that his Manchester City side are showing "no sign of weakness" in the Premier League title race.
Klopp's Liverpool remain unbeaten in England's top flight this season and lead City by a point at the summit ahead of Friday's trip to face Wolves at Molineux.
It means City could be facing a deficit of four points by the time they kick-off against Crystal Palace on Saturday.
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The top two will conclude their festive schedule with a blockbuster clash at the Etihad Stadium on January 3 and Guardiola, whose team have now gone seven games without a clean sheet in all competitions, feels he has plenty to be working on before a potentially defining game.