Pep Guardiola hopes Manchester City's nerve-jangling victory against Watford will serve as a wake-up call to his players. City extended their lead at the summit of the Premier League with a 2-1 victory at Vicarage Road on Tuesday night, but they were made to fight for the three points after Abdoulaye Doucoure pulled one back for Watford in the closing stages.

The champions had been in complete control of the fixture, but spurned a number of chances to put the victory beyond doubt after Leroy Sane and Riyad Mahrez scored either side of half-time.