That has left Chelsea reeling against a side many have predicted will find themselves in a relegation battle this season.
ANTONIO CONTE accused his Chelsea stars of losing the plot after an opening-day shocker.
And Chelsea fans were utterly convinced they were back under Mourinho's curse.
Burnley however changed their tactics after Cahill was sent off and it paid off in the 24th minutes when Sam Vokes netted the first goal after a wonderful cross from Mathew Lowton.
The Republic of Ireland global joined the Clarets this summer after seven years of relative Premier League security at Stoke and is hoping to help bring similar stability.
Conte, looking exhausted and disgruntled, said he preferred not to talk about the referee who also sent off Cesc Fabregas in the 82nd minute after the Spaniard earned a second yellow card for an ill-timed tackle on former Chelsea man Jack Cork. I am ready to fight with these players. The Spaniard then provided an assist for David Luiz to reduce the deficit.
Mee believes that Chelsea's new striker Alvaro Morata, who joined from Spanish champions Real Madrid last month, could pose a threat to Burnley defenders but is confident that team will come up with and stick to a solid game plan. Everybody's having fun though, which is always nice to see and they even got to 30 passes on the last one shown.
"I admit it's a very important amount but I have the personality to play calmly and to stay on my path", Morata told Marca.
A frantic finale continued at the other end as Brady hit the woodwork with a set-piece as Burnley ultimately held on through four minutes of added for a famous triumph that piles the pressure on Chelsea after its tumultuous close-season.