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Before Chelsea's trip to Wembley to face a Spurs side who have won their last four in all competitions, both managers will be preparing their squads to give them their best chance of emerging with all three points.

There is, however, a chink in the Lilywhites' armour that, should Maurizio Sarri's men look to exploit, will result in their annihilation on Saturday.

On the Chalkboard

Mauricio Pochettino's side may have been victorious in their previous four outings, but they have had to grind for those results - a 3-2 win at the Molineux over Wolves became uncomfortable in the last ten as the Midlands side were allowed to pull two back and Harry Kane came to the rescue against PSV in the Champions League, before a narrow 1-0 victory over Crystal Palace.

Chelsea, meanwhile, are currently unbeaten in the Premier League (W8, D4) this season as the Blues players take to 'Sarri-ball' with remarkable effect. Eden Hazard has been the star man - chalking up seven goals and four assists in 11 league appearances, but Sarri's key to victory is not kitted in blue.

Finding out Foyth

It's been a big few weeks for Spurs' Juan Foyth - the young Argentine made his full Premier League debut against Wolves earlier this month.

Giving away two penalties at Molineux, the centre-back may have lost all confidence and a wayward pass in the early stages of the Crystal Palace clash subsequently looked to have confirmed as much but, instead, the former Estudiantes man grew into the game - scoring the winner and scooping the man of the match award.

However, the 20-year-old will still be making only his third top-flight start if he lines up against Chelsea and the errors in his game are yet to be ironed out.

If Chelsea target him early on by putting him under pressure when he is on the ball - Pochettino favours a possession style that involves playing out the from the back - they may force the youngster into a blunder from which they can take the lead.

Whether the defender starts may depends on if he features for Argentina in tonight's Nations League battle with Mexico but should the right-footer be fit for the London derby, Sarri is presented with a focus for his attack.

Check out the harsh words the Playmaker FC squad had to say about Wayne Rooney's England career in the video below