Chelsea slumped to their fifth defeat of the season in all competition this evening courtesy of a 2-1 loss at the hands of Porto in the Champions League.

The hosts took the lead through Andre Andre six minutes before the interval, but Willian's free kick restored parity right on the stroke of half time to send the two sides in level.

Both teams would go on to hit the woodwork in the second half, but the only goal came from the head of Maicon as Porto got one over on former boss Jose Mourinho.

Here, Sports Mole rates those involved on another memorable night of European action.

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PORTO

Goal

Iker Casillas: A mixed performance on the night he made Champions League history with his 152nd appearance. Was statuesque for Willian's free kick and got nowhere near the ball to allow Ivanovic a great chance, but also made smart stops from Fabregas and Pedro. (7/10)

Defence

Maxi Pereira: Always keen to get forward down the right and offered his side a good attacking outlet. Also kept Willian relatively quiet at the other end of the field. (7/10)

Maicon: Fortunate that Hazard stayed on his feet in the box after a lunging challenge from the Porto skipper. Got what proved to be the winner, however, and kept Costa's threat down to a minimum. (7/10)

Ivan Marcano: Like his centre-back partner, was lucky not to give away a penalty when Costa's flick hit him on the arm late on. Withstood the subsequent Chelsea barrage to cap off a decent display, though. (7/10)

Bruno Martins Indi: Not as involved as Pereira on the opposite flank, but still a solid performance to limit the influence of Pedro. (6/10)

Midfield

Danilo Pereira: Hit the post late on with a fine glancing header and did his primary job of breaking up the Chelsea attacks brilliantly. (8/10)

Ruben Neves: Impressive display from the youngster as he helped Porto to success in the midfield battle. Also provided the assist for the winner with a good corner. (7/10)

Gilbert Imbula: Had a barnstorming period in the second half when Chelsea just couldn't get near him. Went on one dazzling run that showcased pace, power and skill in abundance. (8/10)

Attack

Andre Andre: Provided the opening goal of the contest, although in truth it was a simple finish as he swept home the rebound into an unguarded net. Not as involved as his fellow attackers, but still a good display. (7/10)

Vincent Aboubakar: Led the line brilliantly. His power and pace caused plenty of problems for the Chelsea defence, who he was always keen to run at. Held the ball up well and brought others into play too. (8/10)

Yacine Brahimi: The man of the match and a constant menace to the Chelsea defence, particularly Ivanovic. Ran rings around the beleaguered full-back all night, including in the build-up to the first goal. (8/10)

Substitutes

Evandro: Replaced Neves with 12 minutes remaining and helped the hosts to see out the victory. (6/10)

Miguel Layun: On for Andre Andre 10 minutes from the end and had one break forward down the right that came to nothing. (6/10)

Dani Osvaldo: Given just three minutes on the field as Brahimi was handed a well-earned rest. (6/10)

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CHELSEA

Goal

Asmir Begovic: Kept the score down to a large extent, standing firm during a period of heavy pressure from the hosts. Perhaps could have done a little better for both goals, particularly the first when he seemed to dive too early. (6/10)

Defence

Branislav Ivanovic: A torrid evening for the out-of-form full-back. Given the armband for the night but simply couldn't get close to Brahimi, being turned inside out time after time. Also missed a glorious chance at the other end to cap off another poor performance. (3/10)

Kurt Zouma: Again preferred to Terry, although that may not last too much longer. Was by no means the worst Chelsea offender tonight, but his distribution was questionable and he certainly doesn't have the experience or command in defence that the skipper does. (5/10)

Gary Cahill: Couldn't handle the pace and power of Aboubakar at times, and was also one of those who didn't react quickly enough for the winning goal. (5/10)

Cesar Azpilicueta: Probably the pick of the back four on the night. Nothing spectacular and seemed a little cautious when it came to getting forward, but he kept Andre Andre relatively quiet. (6/10)

Midfield

Ramires: Made a real difference off the bench at the weekend but will struggle to keep his spot after this display. Failed to make an impact as Porto won the midfield battle, and was probably most at fault for the winning goal. (5/10)

John Obi Mikel: His inclusion was perhaps the clearest sign that Chelsea would have been happy with a point. However, he failed to adequately do his job as Porto's midfielders powered past him on a few occasions. (5/10)

Pedro: Worked hard on his flank, but that isn't really enough. Had a great chance in the first half with only Casillas to beat, but was denied by the keeper. (5/10)

Cesc Fabregas: Another below-par performance from the Spaniard. Tested Casillas with a low drive early on but that was as good as it got. (5/10)

Willian: Got the goal with a fine free kick that left Casillas rooted to the spot, and never shirked his defensive duties. Unable to have a major impact going forward from open play, though. (6/10)

Attack

Diego Costa: Held the ball up really well in the first half and showed good feet to beat defenders, but was let down by a lack of support. Struck the crossbar and had a late penalty appeal turned down, although he did fade in the second half. (6/10)

Substitutes

Eden Hazard: Admirably stayed on his feet in the box when he could have gone down to win a certain penalty shortly after his introduction. Didn't provide much other than that, though, having surprisingly been dropped by Mourinho. (6/10)

Kenedy: Replaced Pedro with just over 15 minutes remaining and had a chance to make himself a hero with the last kick of the game, but couldn't covert the chance. (6/10)

Nemanja Matic: Introduced at the same time as Pedro, but his most notable contributions saw him hammer an effort well off target and be booked. (6/10)