London - Diego Costa plundered a hat-trick as Chelsea moved three points clear at the English Premiership summit by coming from behind to beat Swansea City 4-2 on Saturday.
John Terry's own goal from Neil Taylor's left-wing cross gave previously unbeaten Swansea an 11th-minute lead at Stamford Bridge, but Costa equalised on the stroke of half-time with a header from a right-wing corner.
The former Atletico Madrid striker made it 2-0 in the 56th minute, lifting a shot into the roof of the net after Cesc Fabregas had exchanged passes with Eden Hazard and cut the ball back from the byline.
Costa completed his treble in the 67th minute by sweeping home a mishit shot by Ramires, before Oscar teed up substitute Loic Remy to claim a debut goal. Jonjo Shelvey scored a late consolation goal for Swansea.
Brazil-born Spain international Costa now has seven goals to his name and is the first player to score in his first four Premier League games since Coventry City's Micky Quinn in 1992.