Steven Naismith Everton Chelsea
Everton midfielder Steven Naismith celebrates after scoring against Chelsea in their English Premier League game, September 14Reuters

You knew well before the opening whistle for Saturday's late night English Premier League game, Roberto Martinez and Everton would be up for it. They would look to upset the applecart of Chelsea and Jose Mourinho.

They did just that you know, as Steven Naismith scored the only goal of the game at Goodison Park right on the stroke of halftime for a precious 1-0 win - the Toffees' first this season after three frustrating draws.

Mourinho did everything he could, but the magic just wasn't in the Merseyside air for Chelsea on Saturday as they suffered their first defeat in the Premier League since the return of the "Special One."

With several Chelsea players going far and wide during the international break, Jose Mourinho did make a few changes with Juan Mata coming into the starting lineup while Samuel Eto'o was handed his Premier League debut.

Eto'o nearly marked his debut with a goal right at the beginning, but his header off a sparkling cross from Ramires down the right flew over the bar.

Everton nearly opened the scoring with the same one-two at the other end, a cross from the right by Steven Naismith with Nikica Jelavic failing to get enough behind the header, allowing Petr Cech to make a comfortable save.

The Toffees, who have found it difficult to break down sides this season, were happy to soak the pressure from Chelsea and hit the away side on the counter, with newly-minted England international Ross Barkley in particular posing a constant threat.

An absolutely calamitous error from Everton goalkeeper Tim Howard gifted Chelsea with a brilliant opportunity.

Howard, trying to be too cute, rather than just clearing the ball, looked to pass the ball back to Distin after initially receiving it from the defender; however, the American only managed to find the feet of Andre Schurrle, who in turn squared it to Eto'o.

With an open goal gaping it looked a first ever Premier League goal for the former Barcelona and Inter Milan man, but Gareth Barry, making his Everton debut, had other ideas, planting his foot in front of the shot from nowhere to deflect it wide.

Ramires was the next Chelsea player to threaten Everton's goal, but his strike from the edge of the box was nicely kept out by Howard, back to his smiling best after getting a massive reprieve.

Schurrle then had a golden opportunity to make it 1-0, after a searing run from Ramires saw the ball fall perfectly to the German. Schurrle, however, leaning back, skied the ball over the crossbar with the goal at his mercy.

It was all Chelsea in the final minutes before halftime, but as is so often the case, Everton got a bolt out of the blue right on the stroke of halftime.

After a string of passes on the edge of Chelsea's penalty box, Osman finally found a nice cross from the right channel towards the far post. Nikica Jelavic rose and headed the ball back towards goal for birthday boy Naismith to nod home.

Chelsea were nearly level within the first minute of the second half. Ramires put Schurrle through on goal, but the German again failed to hit the target, this time scooping his shot over Howard and into the side netting.

Eden Hazard, quiet in the first half by his own high standards, stung Howards fingers with a venomous strike soon after, with Eto'o unable to connect on the rebound.

As time went by, Mourinho expectedly went for broke bringing on Oscar, Frank Lampard and Fernando Torres for Juan Mata, Schurrle and Ashley Cole respectively, as Chelsea gave a roaring huff and an even bigger puff to try and break the Blue wall down.

But Everton were resilient and even threatened with a couple of half chances on the break, with Leighton Baines coming closest, clipping the top of the crossbar right at the death.