Pep Guardiola is "a little bit more moody" because Manchester City have failed to match the high standards they've set in recent years during the first half of the 2019-20 campaign, according to Kevin de Bruyne.
City successfully defended their Premier League crown ahead of Liverpool last term, pipping their rivals to the finishing post by a single point.
The reigning champions have faltered in pursuit of a third successive title, however, after picking up 35 points from a possible 52 at the start of this season.
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In contrast, leaders Liverpool have amassed 49, with Leicester currently 10 points behind in second, which leaves City with a mountain to climb to maintain their domestic dominance.