Chelsea came from behind to beat West Bromwich Albion 2-1 in Andre Villas Boas' first competitive game in charge at Stamford Bridge.
The visitors took the lead with only four minutes played when Shane Long dispossessed Alex before outpacing the Brazilian to slot the ball past goalkeeper Hilario.
The Blues were level after the break when Nicolas Anelka's shot deflected in off Baggies defender Jonas Olsson.
The turnaround was complete seven minutes from time when Florent Malouda tapped home Jose Bosingwa's cross.
Chelsea next face Norwich City on Saturday, August 27, while West Brom see the visit of Stoke City the day after.