• Porto's Andre Andre opened the scoring in the 39th minute with close-range finish past keeper Asmir Begovic
  • Chelsea attacking midfielder Willian scored with a free-kick shortly before half-time interval to level the score
  • Porto captain Maicon delivered the winner from a corner just seven minutes into the second half at Dragao Stadium
  • Nervous and low on confidence, Chelsea's slump was epitomised by defender Branislav Ivanovic
  • The Serb right back was tormented by the man of the match Yacine Brahimi

The warnings from Jose Mourinho were loud and clear. Stars on the bench, stars left in London and still Chelsea were unable to stop their star from falling a little further.
Mourinho blamed attitude ahead of the game, but it was not a problem of desire in Porto, where they were outclassed at times and flattered by the result.

They were not awful for the entire game – there was a flurry in stoppage-time - but they were unrecognisable from the champions of last season, that imperious winning machine, built in Mourinho's ruthless image. 
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Brazilian defender Maicon celebrates after scoring what would be the winner for Porto against Chelsea at the Dragao Stadium
Brazilian defender Maicon celebrates after scoring what would be the winner for Porto against Chelsea at the Dragao Stadium
The Porto captain jumps for joy in front of the home fans after putting his side back in front during the Champions League Group G clash
The Porto captain jumps for joy in front of the home fans after putting his side back in front during the Champions League Group G clash
 Porto's Andre Andre leaps after opening the scoring on Tuesday night against the west London giants in the 39th minute
 Porto's Andre Andre leaps after opening the scoring on Tuesday night against the west London giants in the 39th minute
Chelsea attacking midfielder Willian slides after cancelling out Andre's strike with a free-kick on the stroke of half-time 
Chelsea attacking midfielder Willian slides after cancelling out Andre's strike with a free-kick on the stroke of half-time 
Cesc Fabregas (right) and Diego Costa (centre) stand disappointed ahead of the restart after Maicon (left) clinched maximum points
Cesc Fabregas (right) and Diego Costa (centre) stand disappointed ahead of the restart after Maicon (left) clinched maximum points
Chelsea were unlucky not to receive a penalty during the closing stages of the match as Ivan Marcano's left arm struck the ball
Chelsea were unlucky not to receive a penalty during the closing stages of the match as Ivan Marcano's left arm struck the ball

MATCH FACTS AND RATINGS

PORTO (4-1-4-1): Casillas 6; Pereira 6, Maicon 7, Marcano 6.5, Indi 6.5 ; Danilo 6; Andre 7.5 (Layun 80), Neves 7 (Evandro 78), Imbula 7.5, Brahimi 8 (Osvaldo 87); Aboubakar 7
Subs not used: Helton, Bueno, Corona, Tello
Goals: Andre 39, Maicon 52 
Booked: Indi, Marcano, Imbula, Pereira
Manager: Julen Lopetegui 8
CHELSEA (4-2-3-1): Begovic 7; Ivanovic 4.5, Zouma 5.5, Cahill 6, Azpilicueta 6; Ramires 6 (Matic 73, 5), Mikel 6 (Hazard 62, 5); Pedro 5 (Kenedy 73, 5), Fabregas 5, Willian 6.5; Costa 6
Subs not used: Blackman, Rahman, Terry, Loftus-Cheek
Goal: Willian 45 
Booked: Cahill, Azpilicueta, Matic
Manager: Jose Mourinho 6
MOM: Yacine Brahimi
Referee: Antonio Mateu Lahoz (Spain) 6
Attendance: 46,120 

Suddenly Chelsea are ravaged by nerves, prone to panic, vulnerable from set-pieces and low on confidence. No-one epitomises the mess more than Branislav Ivanovic who was tormented by the outstanding Yacine Brahimi.

How Iker Casillas enjoyed this record-breaking night as Mourinho's mind tricks produced no magic and begged the question: what can he do next?

He has tried to charm and defend his players, he chided them gently before his verbal criticism became fiercer and culminated with threats to drop them all and 'play the kids'.
Then this setback. Another defeat, a fifth in a campaign when the only wins have come against Walsall, Maccabi Tel Aviv, nine-man Arsenal and West Bromwich. Are they still listening?

Asmir Begovic emerges with some credit, having kept the score down with a series of saves, while in front of him only Willian responded to a recall, scoring his third free-kick in as many games to equalise at the end of the first half.

Porto had gone ahead through Andre Andre – so good they named him twice – and went back in front early in the second half when captain Maicon headed in from a corner.
Conceding such a crucial goal from a set-piece will infuriate a meticulous organiser such as Mourinho - but he has broader issues.

This was a difficult test against an ambitious team and the result is not fatal in Champions League terms. Chelsea ought to qualify from Group G, which also contains Maccabi Tel Aviv and Dynamo Kiev.

Mourinho, however, cannot cajole his team into life. Keep an eye out for his selection for Saturday's game at home to Southampton.

Double Player of the Year Eden Hazard and Nemanja Matic were axed for this one. There was no John Terry, but that has become the norm and the reason remains a mystery.

Can they be much worse with Terry at the back? He would bring leadership and organisation at least. Kurt Zouma and Gary Cahill are Mourinho's new guard and they lacked composure in Porto.

Omitting Hazard and Matic was perhaps an attempt to jolt them back into form. Both are vital to Chelsea, but the future looks bleaker for others.
Radamel Falcao, Loic Remy and Oscar did not make the squad, left in London despite being fit and available. It meant no recognised centre forward on the bench, and fortunately the unreliable hamstrings of Diego Costa did not twang on this occasion.
Costa, free from the ban ruling him out of domestic matches at the moment, started hungrily and created an early chance but Cesc Fabregas was denied by Casillas, making a record 152nd appearance in the Champions League.