Why recent history tells us Conte should be fearing for his job

Antonio Conte and Jose Mourinho

No-one saw it coming.

Chelsea, the reigning Premier League champions, losing at home to Burnley (that's Burnley, the team that won once away in the whole of 2016-17) on the opening weekend of the Premier League season.

It is, of course, very early days. But should Antonio Conte be worried?