Garth Crooks's team of the week: Sanchez, Austin, Aguero

Is anybody going to stop Chelsea? Jose Mourinho's men won again this weekend, this time against last season's runners-up Liverpool.

Manchester City dropped more points at QPR as they were held to a draw, but Southampton kept up their early-season pursuit of the leaders with a hard-fought win against Leicester. They remain four points behind Chelsea.

Burnley registered their first victory of the season, against Hull, while Newcastle's good form continued with a win against West Brom.

The two north London clubs had weekends to forget - Tottenham losing at home to Stoke and Arsenal beaten by Swansea at the Liberty Stadium.

GOALKEEPER - Brad Guzan (Aston Villa)

Brad Guzan saves from Enner Valencia

Guzan ended a run of six Premier League appearances without a clean sheet at West Ham

Originally I had Joe Hart in my starting line-up for keeping Manchester City in the game at QPR, but on reflection I've gone for Brad Guzan for an excellent performance against West Ham.

There were times in this fixture when it looked like Aston Villa were under siege and but for the American keeper, the score might have been anything. Excellent clean sheet.

DEFENDER - Daryl Janmaat (Newcastle)

Daryl Janmaat

Janmaat became the first Newcastle player to assist more than one goal in a PL game since Davide Santon in February 2013 (both players with two)

The Netherlands international produced an excellent performance against West Brom, setting up both goals for the Magpies.

I get the feeling that if Newcastle's form continues they won't be talking about survival any more, but Europe. What a difference a few results make.

DEFENDER - Ron Vlaar (Aston Villa)

Ron Vlaar

Since Vlaar joined Villa they have had a 30% win percentage when he has played, compared to 14% in the 21 games he has missed.

Whenever Ron Vlaar is in the middle of their defence there is always a feeling that Aston Villa have a chance and so it proved against a West Ham side who threw everything apart from the kitchen sink at Paul Lambert's team.

If you can survive the bombardment of Diafra Sakho, Carlton Cole and Andy Carroll then you deserve a point. An excellent battling performance by the skipper and his men.

DEFENDER - Fabricio Coloccini (Newcastle)

Coloccini celebrates his goal against West Brom

Coloccini had gone 109 Premier League games without a goal before scoring against West Brom

The change in fortunes for Newcastle United, and in particular manager Alan Pardew, during the last four games have been quite extraordinary. I noticed the Magpies' performances take a turn for the better the moment Fabricio Coloccini returned to the side.

His form and organisational skills at the back over the last four games have been immense.

DEFENDER - Ryan Bertrand (Southampton)

Ryan Bertrand

Bertrand has already won eight games with Southampton this season, equalling his best in any single season in the PL (8 in 2012-13 with Chelsea)

Ryan Bertrand was supplying some wonderful crosses for his Southampton team-mates all afternoon. The on-loan Chelsea full-back seems to have finally found a football club where the manager rates him and he can get regular first-team football.

It's clear to me that Bertrand is not going to dislodge Filipe Luis, or more importantly Cesar Azpilicueta (who played well against Liverpool), at Chelsea so the quicker he signs permanently for Ronald Koeman at Southampton the better.

MIDFIELDER - Gylfi Sigurdsson (Swansea)

Gylfi Sigurdsson celebrates his goal for Swansea against Arsenal

Sigurdsson has been involved in nine goals (two goals, seven assists) in 11 Premier League appearances for Swansea this season

How Gylfi Sigurdsson's former club Tottenham Hotspur could do with him now. His performance against an Arsenal side who seemed in total control of the match at times was impressive. Without doubt the highlight of the match was Sigurdsson's free-kick. Top class.

MIDFIELDER - Alexis Sanchez (Arsenal)

Alexis Sanchez

Without Sanchez's league goals this season, Arsenal would be 15th

I can't understand what is happening to Arsenal. For large portions of the game the Gunners were in complete control largely due to the outstanding performance of Alexis Sanchez. His desire to score goals and to win football matches is clearly evident.

Three goals conceded in midweek against Anderlecht and another two against Swansea is a worrying feature. I think the least Arsene Wenger can do is give this lad the defence he deserves.

MIDFIELDER - Jefferson Montero (Swansea)

Jefferson Montero

Montero has assisted a goal in each of his last two Premier League appearances at Liberty Stadium

It's been a long time since I've seen a natural winger take a makeshift fullback apart in the Premier League quite like Jefferson Montero did against Calum Chambers in Swansea's 2-1 victory over Arsenal.

At what point in the game was the Arsenal manager going to protect his player from such an onslaught? The Ecuadorian was relentless in his ability to expose the defender while Arsene Wenger sat and watched. It was only a matter of time before the inevitable happened and the winger made Arsenal pay the price.

FORWARD - Charlie Austin (QPR)

Charlie Austin

Austin has four goals in his last three Premier League appearances after scoring only twice in his opening seven appearances in the competition

This lad seems to get better every time I see him. He beat Joe Hart three times and was only credited with one goal. How's your luck? Unfortunately for Charlie, referee Mike Dean called the two disallowed goals absolutely right. Although I must say I'm not mad about Charlie's chicken dance celebrations.

FORWARD - Sergio Aguero (Manchester City)

Sergio Aguero

Aguero's total of 12 goals is the second best total 11 weeks into a PL season (behind Les Ferdinand's 13 goals at this stage in 1995-96)

Harry Redknapp said in his post-match interview the lad is a genius and he's right. QPR can't give the likes of Sergio Aguero that kind of room and not expect him to punish you.

QPR did query the Argentine's first goal which, although it was magnificently taken, the ball did strike his hand. However the Hoops can have no complaints about Aguero's second goal and the equaliser. QPR were undressed.

FORWARD - Shane Long (Southampton)

Shane Long

Long's brace from the bench ended a run of 11 Premier League appearances without a goal

The substitute should have had a hat-trick. Shane Long has always scored goals and I'm not in the least bit surprised he's doing it at Southampton.

I'm not entirely sure why West Brom sold him or, come to think of it, Hull either. A must-have player for any squad.