Chris Hatterall: Four big takeaways from Stamford Bridge 

Erling Haaland scores again, Chelsea struggling to find the right balance. 

KEY DIFFERENCE: Erling Haaland who had a relatively quiet game in west London still showed that he could be the difference in the title race this season. Picture: Stu Forster/Getty Images

Erling Haaland could once again be a key difference for City in the title race

The big striker, who had a relatively quiet game in west London still showed that he could be the difference in the title race this season.