Chelsea 4-2 Southampton: Diego Costa scores twice as Chelsea go seven points clear

Chelsea 4-2 Southampton

Diego Costa reached a Premier League milestone as Chelsea tightened their grip on the title with a 4-2 win over Southampton at Stamford Bridge.

Former Blues midfielder Oriol Romeu (24) had cancelled out Eden Hazard's early opener (5) but fit-again Gary Cahill restored their lead just before the break and Costa then netted twice to end a seven-game drought in style, the first his 50th in England's top flight.

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Ryan Bertrand headed an injury-time consolation for a Southampton side that fought gamely but a victory that feels pivotal sees Antonio
Conte's men stretch their lead at the top to seven points.