Yeah I thought so that Forest gonna have the first break and they did... Nice goal from Elanga there.. Chelsea are having good stats in the match but you gotta see that pressure is on Chelsea now. The odds or stats means nothing here. What if Nottingham goes on to score another goal? It's a risky one right now to back Chelsea or even draw. Nottingham are really making it hard for Chelsea right now.
Really embarrassing for Chelsea. 
Nottingham Forest was able to defend well after they managed one goal from Elanga, Chelsea's attack didn't really mean that their chances were many but they couldn't find a gap in Nottingham's defense. I see Chelsea's style of play is still chaotic and the players are not very creative.
It's hard to imagine if they met Man City, Liverpool or another big team they wouldn't be so consistent, sometimes this match was bad but the next match was good.
Chelsea still hasn't found the right solution.