Sergio Aguero the hero as Manchester City defeat Wigan

A Sergio Aguero hat-trick wrapped up the three points to leave Roberto Mancini's men at the top of the Premier League table with 15 goals in their opening four games.

Mancini gave Carlos Tevez a starting berth in place of the Premier League's leading scorer Edin Dzeko with the Argentine looking to re-establish his reputation with the Eastlands faithful following a summer of transfer speculation that only served to damage his reputation. Samir Nasri, who was at his first game in City colours, started on the bench.

The Argentina forward has had no trouble adapting to life in England and his latest three goals mean he has scored six times in four games since his move from Atletico Madrid.

 His effort contrasted with Carlos Tevez, who missed a penalty to add to being stripped of the captaincy this week.

 In the other games of the day, Daniel Sturridge was a key figure as Chelsea won 2-1 at Sunderland.

John Terry put the Blues ahead in the 18th minute when he gathered a cross on the left of the area from Sturridge and sent in a ball across the six-yard box.

The Black Cats failed to clear and when the ball came back to the England captain, he fired into the back of the net.

The Blues doubled their lead five minutes after the break, this time Sturridge turning scorer as he ran on to a long ball and back-heeled into the net despite the best efforts of Wes Brown to stop the ball crossing the line.

Sunderland pulled one back through Ji Dong-won in the final minute after he was left unmarked in the area but it was too little, too late.

Liverpool went 1-0 down through a contentious penalty at Stoke when Jamie Carragher was adjudged to have fouled Jon Walters.

The Stoke forward appeared to go down a little easily after the former England defender put his arm around his waist. However, Walters got up to fire down the middle and give the hosts the lead.

Liverpool responded, Jordan Henderson and Charlie Adam peppering the goal with Luiz Suarez then missing an open goal in the fifth minute of stoppage time as the Potters held on.

Arsenal won 1-0 against Swansea, who have still yet to score this season.

The Gunners, who fielded all five of their deadline-day signings, won thanks to an awful error five minutes before half-time by Michel Vorm.

The Dutchman gathered the ball and rolled it out but it hit the heel of team-mate Angel Rangel and Andrey Arshavin slid the ball home from a tight angle.

The Swans came within inches of equalising when Scott Sinclair's 25-yard free-kick hit the bar and went out.

Tottenham won 2-0 at Wolves, going ahead halfway through the second half when two recent arrivals at White Hart Lane combined.

Scott Parker, who joined last week from West Ham, poked the ball through for Emmanuel Adebayor who ran on to the ball and slotted home.

Harry Redknapp's side doubled their lead 10 minutes from time, Jermain Defoe firing home from close range.

Everton and Aston Villa drew 2-2 at Goodison Park.

Leon Osman put the Toffees ahead after being played in by Tim Cahill, only for Villa to equalise in the 63rd minute through Stiliyan Petrov's long-range shot.

The hosts regained the lead when Fabian Delph was penalised for a foul on Phil Jagielka and Leighton Baines fired home the spot-kick, but the visitors levelled when Gabriel Agbonlahor headed home.

In the final match Manchester United continued showing their fantastic form when they thrashed Bolton Wanderers 5-0.