Chelsea and Manchester City go head-to-head in Sunday's Premier League clash with both sides making an impressive start to the season.
Chelsea and City were made favourites for the title before the season and both have backed up those predictions after eight games.
Jose Mourinho's Chelsea side are currently second in the table, two points behind Arsenal, whilst Manuel Pellegrini's City lie in fourth, just a point further back.
Momentum is the key word for this fixture.
Chelsea will look to keep theirs up, as they are unbeaten in seven matches, including six wins.
Meanwhile City have recovered well after defeats to Aston Villa and Bayern Munich. They have won the last three games, including league victories against Everton and West Ham.
So despite the fact that this fixture is being played in October, could it decide where the title is going in May?
With Manchester United already losing ground, a predicted three-horse race has turned to two.
Arsenal and Liverpool have started strongly but the Gunners have never been close since winning the Premier League in 2004, nine years ago.
And you go have to go further back to the 1989/90 season to see Liverpool last lift the league title.
Both have inexperienced squads when it comes to winning titles and being consistent over 38 games whereas Chelsea and City have both tasted league success this decade.
To no surprise, both clubs with mega-rich owners made numerous signings this summer.
Chelsea strengthened their midfield, signing Willian, Andre Schurrle, Marco van Ginkel and Christian Atsu to join a number of players already in the ranks such as Frank Lampard, Edin Hazard, Juan Mata and Oscar.
City spent £98m in the summer, adding to the glamorous squad they already had last season.
Alvaro Negredo and Fernandinho are the stand-out performers who moved to the club in the transfer window.
Both managers have now gelled their squads together and know their best 11's.
They also have enormous amounts quality sitting on the bench.
Both squads are far superior to any other side in the Premier League, even compared to big-spending Tottenham Hotspur.
It will be a fascinating battle between Chelsea's resilient defence and City's blistering attack.
Jose Mourinho bases his side on a strong defence and they have not let him down so far, conceding just five goals in their eight league games so far.
City have plenty of fire-power to see them cross the line first in May.
They have scored 20 goals so far, the most in the league.
Sunday will give us a much clearer indication as to who looks like a team of champions.
This exciting fixture is all about sending a message to their opponents.
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