Chelsea transformed after Conte's switch to three-man defence
With Chelsea leaking goals too easily, Antonio Conte didn't have to search far for the solution.
The Italian manager merely implemented the tactics that served him well with Juventus and his national team.
Chelsea have not conceded a goal in the Premier League and have won all four games since Conte removed a defender from their typical four-man back-line.
Manchester City, Arsenal and Liverpool are only separated by goal difference, and Chelsea, who host Everton today, are a point behind. It's some revival for a team that was on its knees last season, when the reigning champions collapsed and JosÈ Mourinho was fired.
Gary Cahill has been featuring on the left of the back three with David Luiz in the centre and Cesar Azpilicueta on the right.
"Every player has worked hard on the shape the manager has brought in and we are getting the rewards," Cahill said. "It is all right having the shape. It is also to do with having the players with the mentality to go out and do the business when we need to."
The turning point was the September 24 loss to Arsenal, when Chelsea had conceded three goals before half-time. Switching to three at the back for the second half shored up the defence and prevented a heavy defeat. Within weeks, Chelsea were delivering a humbling of their own by beating Manchester United 4-0 in the biggest sign that Conte's 3-4-3 is flourishing.
Everton are only four points behind Chelsea and in sixth place despite an erratic spell in recent weeks. The highlights have been holding Manchester City to a 1-1 draw and beating West Ham, but losses to Burnley and Bournemouth could prove damaging to Everton's ambitions to qualify for the Europa League.
Arsenal and Tottenham head into tomorrow's derby after a week of contrasts in the Champions League. Arsenal secured a 17th consecutive season in the round of 16 with a gritty comeback to beat Ludogorets, 3-2. Tottenham's miserable return to Europe's elite competition after a six-year absence continued with a home loss to Bayer Leverkusen.
With only four points from a possible 12, Tottenham are facing early elimination. They may be shining in the Premier League as the last remaining unbeaten team, but in the Champions League, they just can't win.
Leicester will be without goalkeeper Kasper Schmeichel for tomorrow's match against West Bromwich Albion after he broke his right hand during Wednesday's Champions League draw with FC Copenhagen. It will be the start of a lengthy but unspecified period on the sidelines. Ron-Robert Zieler, an offseason signing from Hannover, will step in during Schmeichel's absence.
Leader Manchester City host Middlesbrough on Saturday, buoyed by a Champions League win over Barcelona.
Liverpool, behind only City in third on goal difference, face Watford, who are flying high in seventh place. Watford are reeling from the resignation of executive chairman Raffaele Riva amid investigations into the 2014 takeover by Italian businessman Gino Pozzo, and Riva said he will "vigorously" defend his integrity.
Manchester United are behind Watford in seventh and Mourinho's struggling side are away at Swansea on Sunday after a lengthy trip to Turkey for a Europa League game against Fenerbahce on Thursday. Swansea manager Bob Bradley is looking for his first win at his fourth attempt, having collected only one point since taking charge of the south Wales club.
Swansea are three points ahead of winless and last-place Sunderland, who are at Bournemouth.