Fernando Torres scored the decisive goal as Chelsea came from behind to beat Reading 4-2 at Stamford Bridge on Wednesday.
Frank Lampard opened the scoring with a powerful first-half penalty after Eden Hazard, who impressed once again, had been tripped by Chris Gunter.
Reading equalised shortly after through a thunderous Pavel Pogrebnyak header, before Petr Cech let a Danny Guthrie free kick squirm from his grasp and into the net.
But Adam Federici followed suit, allowing a Gary Cahill shot to skid away from him, and with less than 10minutes remaining, Torres was left with the simplest of finishes after good work by Juan Mata and Ashley Cole.
Branislav Ivanovic swept into an open goal in stoppage time, with Federici out of his area after attacking a corner.
Hazard, who had caught the eye in his Premier League debut against Wigan, was involved inside two minutes, racing onto a pass from Mata on the left hand side, but the Belgian’s shot across goal failed to find the target and rolled wide.
Reading launched a counter-attack, but lone striker Pavel Pogrebnyak flashed his shot wide.
It was more Chelsea skill that would create the chance for the opening goal after 18 minutes, as Hazard had his standing leg tripped in the box by Gunter, leaving referee Lee Mason with the easy decision to award the penalty.
Lampard stepped up and drilled low and powerfully to Federici’s right and, though the shot stopper dived the right way, he had little chance of keeping the spot kick out.
The home side’s lead lasted little more than five minutes though, as Pogrebnyak headed Reading level.
Garath McCleary exchanged a quick one-two with Guthrie before finding the Russian, who showed expert movement to beat Cahill and head into the top corner beyond Cech.
And, just before the half hour mark, the visitors were in front after John Terry gave away a free kick for a foul on Jobi McAnuff around 20 yards from goal.
Guthrie blasted low and hard at Cech, but the 30-year old spilled a regulation save and could only watch the ball trickle into his net.
Chelsea wasted no time in attempting to get back into the game after the break as Torres pulled back to the edge of the box for Ivanovic, but the defender’s shot sailed a long way over the bar.
But, with his side unable to break Reading down in the early stages of the second half, Roberto Di Matteo handed Oscar his Stamford Bridge debut, in place of compatriot Ramires.
But it was a defender who would pull the scores level in the 70th minute, when Cahill’s speculative long-range effort bounced in front of the outstretched palms of Federici, who pushed the stinging shot into the bottom corner.
The equaliser gave Chelsea the impetus to press for a winner, and with under 10 minutes left, Chelsea landed the killer blow as Ashley Cole darted onto a pass inside the box and squared for Torres, who got ahead of the resolute Reading backline and tapped into an empty net.
There were suspicions of offside surrounding the goal, but Chelsea took the three points in their first home game of the season as Federici came up for a corner and left his goal exposed, allowing the hosts to break through Hazard, who gifted Ivanovic an open goal.