Rosenior's side produced one of their worst performances of a miserable season as Ferdi Kadioglu put Brighton ahead in the first half before Jack Hinshelwood and Danny Welbeck netted after the interval.

It is the first time that Chelsea have lost five consecutive league games without scoring since 1912, fittingly the year that the Titanic sank. Beaten seven times in their last eight games in all competitions, the Blues have just one victory in their past nine league matches.

Chelsea are languishing in seventh place, seven points behind fifth-placed Liverpool in the fight for the top-five finish that guarantees a Champions League berth. Rosenior's team are in danger of missing out on European football altogether unless they can halt their wretched run.

They face Leeds in the FA Cup semi-finals on Sunday knowing a defeat at Wembley could push Rosenior to the brink of the sack just months after he arrived from Strasbourg to replace Enzo Maresca in January.

Rosenior this week claimed Chelsea's owners have been "magnificent" in their backing of him despite their alarming slump. Chelsea co-owner Behdad Eghbali has said the club remain optimistic about long-term success under Rosenior.

But the atmosphere around Chelsea is turning increasingly toxic. Boos greeted the full-time whistle following Saturday's 1-0 defeat to Manchester United at Stamford Bridge after supporters staged a protest against owners BlueCo ahead of kick-off.

There were more jeers for Rosenior and his players from Chelsea's fuming fans at Brighton, who climbed above the Blues into sixth place.

'We want our Chelsea back'

Rosenior switched to a back five in a bid to make Chelsea harder to break down, but it took just seconds for it to become apparent that his plan would backfire. Kaoru Mitoma met Pascal Gross' cross with a stinging strike that forced a good save from Robert Sanchez in the opening moments.

It was a warning that Chelsea failed to heed as Brighton took the lead in the third minute. Gross' corner was flicked on to Kadioglu as Chelsea failed to clear, their slow response allowing the defender to lash past Sanchez for his first goal in 17 months.

That was the signal for chants against Chelsea's owners from the Blues supporters packed into one end of the Amex Stadium.

Gross was tormenting Chelsea with his accurate deliveries and Jan Paul van Hecke went close from another of the German's crosses, leaping for a header that Sanchez tipped over.

Chelsea were in disarray and Sanchez almost gifted Brighton a goal when he miscued a pass straight to Carlos Baleba, who teed up Hinshelwood for a shot that was cleared off the line by Trevoh Chalobah.

For the first time in a league game this season, Chelsea failed to muster a single shot in the opening 30 minutes. They finally managed a shot five minutes before half-time, but Chalobah's unsuccessful effort only earned derision as furious fans chanted "we want our Chelsea back".

When Romeo Lavia drilled wide after the interval, Rosenior was targeted for abuse from the travelling supporters. The opprobrium got even louder in the 56th minute. Chelsea claimed they should have had a free-kick when the ball appeared to bounce off Yankuba Minteh's arm.

But play was allowed to continue and Brighton launched a blistering counter as Georginio Rutter sprinted away before picking out Hinshelwood for a composed finish.

Chelsea had no response and Rosenior was bereft of ideas on the touchline as Brighton delivered one final blow in stoppage time. Maxim De Cuyper cut the ball back for Welbeck inside the area and he fired into the roof of the net as Rosenior shook his head in disbelief.

J. Hinshelwood

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