Interim manager Rafael Benitez admitted Chelsea had thrown away the chance of a victory over Southampton by failing to kill off the game when they were on top.
Chelsea led 2-0 at half-time, courtesy of goals from Demba Ba and Eden Hazard, and appeared to be cruising to a first home win since before Christmas. But Rickie Lambert pulled Southampton back into the game with a header three minutes after coming off the bench and Jason Puncheon then secured a 2-2 draw with a brilliant volley.
"We should have won," Benitez said.
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