Chelsea's early season slump turned into a full-blown crisis on Saturday when they were beaten 3-1 by Southampton while Manchester City went top of the Premier League with Sergio Aguero scoring five in a 6-1 win over Newcastle United.
Southampton's win at Stamford Bridge meant Chelsea have made their worst start to a season for 37 years and ended the day in 16th place on eight points, 10 behind City, who will be top at least until Manchester United play Arsenal on Sunday.
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City ended their own mini-slump in style, after two successive league defeats, but Chelsea's dire run continued even though they took an early lead with Willian scoring with a 10th minute free-kick.
Southampton hit back with goals from Steven Davis just before half-time, Sadio Mane after 60 minutes and a third from Graziano Pelle 12 minutes later.
The defeat prompted an extraordinary response from Chelsea manager Jose Mourinho, who spoke for seven minutes without pause in response to one question from a Sky Sports reporter after the game.
Mourinho insisted Chelsea should have had a penalty before Southampton scored their second goal, and said he was not running away from his responsibilities.
"I can imagine what people are thinking about what is going to happen or not going to happen," he said.
"Let me be clear: One, I do not run away. Two, if the club want to sack me they have to sack me because I am not running away from my responsibility or my team and from my conviction.
"Third, even more important than the first and the second, I think this is a crucial moment in the history of this club because if the club sacks me they sack the best manager that this club has had and the message is...that if there are bad results the manager is guilty."
Mourinho strongly criticised referee Robert Madley for not awarding Chelsea a penalty when Radamel Falcao appeared to be brought down by Saints goalkeeper Martin Stekelenburg after 53 minutes.
"The referees are afraid to give decisions for Chelsea," he said, a theme he continued for several more minutes.
Saints manager Ronald Koeman said the second half made all the difference after a difficult start: "We were more aggressive than Chelsea and in my opinion we totally deserved the three points today," he told Sky.
