| When Chelsea triumphed in Porto against Pep Guardiola's team in 
				May, the result was considered an upset with City heavily backed 
				to win their first Champions League.
 
 But four months later, Thomas Tuchel's West London side find 
				themselves many pundits' favourites to win the domestic title 
				after a hugely impressive start to the campaign.
 
 Chelsea have won four of their opening five matches with a draw 
				coming after a 10-man rearguard action against Liverpool at 
				Anfield which earned as many plaudits as their victories.
 
 They also have a 100% record against City since Tuchel took 
				charge at Stamford Bridge in late January -- winning in the FA 
				Cup, the Premier League and the Champions League final.
 
 City's start has seen them lose at Tottenham Hotspur, with a 
				draw at home to Southampton last week leaving them three points 
				off the leading trio - Chelsea, Liverpool and Manchester United.
 
 Romelu Lukaku's arrival from Inter Milan for 97 million pounds 
				($132.67 million) has given Chelsea an extra dimension they 
				lacked last term - a scoring threat ahead of their creative 
				midfielders, unmatched defensive midfield and solid back-line.
 
 City failed in their bid to sign an out-and-out striker in the 
				form of Spurs' Harry Kane and Guardiola's team have yet to truly 
				display the kind of fluent, attacking football for which they 
				have been known under the Spaniard's charge.
 
 Kane himself has struggled for form at Tottenham but Sunday 
				would be the perfect occasion to get back to his best with a 
				trip to the Emirates for the North London derby with Arsenal.
 
 After leading the table after winning their opening three league 
				games under new manager Nuno Espirito Santo, Spurs have suffered 
				back-to-back 3-0 losses to Crystal Palace and Chelsea.
 
 In contrast, Arsenal lost their first three games but go into 
				the derby after morale-boosting wins against Norwich City and 
				Burnley.
 
 Juergen Klopp's Liverpool face a tricky trip to promoted 
				Brentford in Saturday's late game (1630 GMT), while Manchester 
				United host Aston Villa in an early kick-off (1130 GMT).
 
 ($1 = 0.7312 pounds)
 
 (Reporting by Simon Evans; Editing by Ken Ferris)
 
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