Pep Guardiola is focusing on individual mistakes in training to stop arrogance derailing Manchester City.
The City manager is mindful that the record-breaking 15-match run of wins and an eight-point lead at the Premier League's summit could see concentration levels plummet.
And he has continued to come down hard on his stars before travelling to Leicester City, the scene of an embarrassing 4-2 capitulation last season.
'The moment they don't believe they can be better then that's the moment we crash, to fall down,' Guardiola said.