After seven rounds of the Premier League season, the title race looks to be developing into a battle between the two Manchester clubs.
While the sides are locked together on 19 points, Pep Guardiola's side are just 4/6 (1.67) to end the campaign on top of the table, having secured a victory from their trip to Stamford Bridge on Saturday evening despite the absence of Sergio Aguero.
Manchester United battered Crystal Palace 4-0 at Old Trafford earlier in the day but a win over the hapless Eagles has done little to help their cause in the outright betting; Mourinho's men remain as 11/4 (3.75) shots at dabblebet with the bookmakers firmly believing that it is their rivals who are best positioned for a title tilt.
That's unsurprising given that the league leaders have already come through tricky tests against two of last season's top four, taking six points in the process, whereas United face Liverpool and Tottenham in October.
City's impressive performance in their most recent outing has only served to put more distance between the two city rivals and their nearest challenger, with Chelsea now 15/2 (8.50) to retain their domestic crown having already slipped six points off the pace.
While Alvaro Morata had to be substituted, Antonio Conte played down the Spaniard's injury but the Blues' squad still looks pretty thin when compared to the two leading contenders, especially considering they now have European football to contend with, unlike the previous campaign.
With the Champions League group stages now in full flow, the ability to manage a packed fixture list will come under the microscope. The Chelsea boss has already alluded to the need for rotation within his side following the latest defeat and explaining that he had adopted a more defensive approach against City due to the exertions of their midweek win in Madrid.
Tottenham are a point better off than the reigning champions but are still a much bigger price, with dabblebet going 12/1 (13.0) about Maricio Pochettino leading Spurs to a better finish than their runners up spot last term.
Arsenal showed no signs of a European hangover as they eased past Brighton at the Emirates on Sunday but the Gunners are still 33/1 (34.0) outright, the same price as Liverpool who dropped more points domestically, this time against Newcastle.
Just one win in their last seven games has got to be a huge concern for Jurgen Klopp going into the international break, especially as they welcome Manchester United to Anfield on the first top flight game after the interlude.