Brentford have drawn three straight Premier League games since smashing Spurs here on the opening weekend. Chelsea have conceded eight goals in four Premier League games, as well as three in the EFL Cup win over Leeds at Stamford Bridge, as Xabi Alonso's side look unsure of themselves defensively.
The last four Premier League meetings between these West London rivals at the Gtech Community Stadium have ended level, a couple of them on 2-2 scorelines.
The teams traded goals here last season, Moises Caicedo seemingly winning it late for Chelsea before Fabio Carvalho's intervention.
Chelsea had 68 percent possession against Hull last weekend but allowed the Tigers to accumulate twice as many big chances and an xG figure of 1.38 following two goals in six first-half minutes from Mohamed Belloumi.
Brentford are a competent team under Keith Andrews' leadership and can frustrate the visiting Blues here once more.
Brentford vs Chelsea prediction: Tie (+295) available at time of publishing. Playable to +270.