Sky Bet are top price on Chelsea, Manchester City and Manchester United in their Premier League title race betting, with the former now favourites at 11/5.
Entering a weekend in which Chelsea round off proceedings with a trip to Old Trafford, City were favourites given what on paper appeared a straightforward visit to Cardiff.
However, despite taking an early lead through Edin Dzeko it was a disappointing afternoon for Manuel Pellegrini's side as Cardiff fought back to claim their first ever Premier League win.
As a consequence, City are now 23/10 to win the league for a second time with United quoted as 14/5 third-favourites.
Chelsea will shorten further if they can win at United, which they're priced at 2/1 to do, with United considered marginal favourites for the Monday Night Football encounter.
Cardiff are out to 2/1 for relegation, a market headed by 4/11 shots Crystal Palace after they lost at Stoke on Saturday.
The weekend's fixtures started with a 3-1 win for Arsenal at Fulham and they're now 11/10 for a top-four finish, ahead of 5/4 chances Tottenham after a Roberto Soldado penalty proved enough for them to beat Swansea.
Soldado is fourth in the top goalscorer betting at 12/1 behind Robin van Persie (5/2), Sergio Aguero (8/1) and Christian Benteke (11/1).