Chelsea FC became the last club in Europe to taste defeat at Wembley in all competition this season having gone 12 matches unbeaten so far in the league, making Sarri the first coach to have done that in his first English premier league season as Chelsea manager. The latest defeat is a setback to Chelsea title aspiration as they are now 7 points behind league leader Manchester City and fell to fourth after their defeat in the hands of Tottenham.

Last season Chelsea lost 3-1 to Tottenham and the same score line repeated itself with Dele Ali scoring on both occasions. Dele Ali who has netted 6 times in 5 games against Chelsea has proven to be the super man in the derby.

Tottenham opening the scoring as early as the 8th minutes of the when Dele Ali’s flicked header from Christian Erickson cross took Kepa unaware judging by the speed of the ball. Son made it 3-0 beating Jorginho with amazing pace before Substitute Giroud made in 3-1 at full time.

What are the mistakes that cost Chelsea this game

Referee mistakes

Referee Martin Atkinson had a nice officiating but committed a blunder when Chelsea would have draw level with Tottenham from the penalty spot if not for poor call for play to continue after Hazard was brought down inside the penalty box. A video analysis showed that the referee decision was quite unfair after such a dubious foul. A second penalty call from Hazard was turned down as well by Martin Atkinsom.

Keeper loss of concentration

It was quite evident that the aspiring Spain number one keeper could concentrate in the first 15 minutes of the game, letting Dele Ali’s header to pass between his two hands without giving the ball a proper Punch off the bar. Kepa had to pick the ball out of his net for a second time when Harry Kane’s 16 minutes outside eighteen box thunderous shot left the keeper pined to a spot after what seems like a shot Luiz ought to have blocked but that wasn’t excuse for Kepa not to make attempt to it.

Tactical errors

From the starting whistle, Chelsea couldn’t contend with the pace of Pochettino’s men who approached the game aggressively and Sarri watched his boys running after the ball all through the first half of the game helplessly. Was he thinking, its an initial approach that will die slowly as the game progresses but that wasn’t the as it seems as Tottenham was all over the pitch for 90 minutes. Sarri was seem making no input in terms of telling his players what to do.

The defence was awful by Luiz

Tottenham had two corner kicks in the first minute of the game. That showed how vulnerable the defence line was and unable to cope with Tottenham swift pace and passes. David Luiz lack of coordination with Rudigar at the central defence and continues moving out of position affected the team. His reckless foul gifted Tottenham their first goal and the second goal when he dodge a shot from Harry Kane from 25 yards. Finally, Luiz was deleted out on the third goal when Son beat him with misjudge tackle in the box to make it 3-0.

Mr Sarri in his post match blamed his team defeat for playing very badly. He was quoted to have said his boys played badly in all direction-technically, physically, mentally, tactically. I sincerely believe Chelsea will learn their lessons from this match and focus on the mid week Europa League game. I really sad writing this. It was a bad day for me.