Chelsea's rocky Premier League form looks to have crept into the Champions League after they suffered a 2-1 defeat against FC Porto at Estadio do Dragao on Tuesday.
- FC Porto 2 Chelsea 1
- Andre powers Porto in front
- Willian equalises on half-time
- Maicon restores hosts' lead
- Costa has late penalty call denied
The fans had to wait until the 39th minute for the opening goal of the game, Andre Andre powering home on the rebound after Asmir Begovic could only palm Yacine Brahimi's shot back into the danger.
Jose Mourinho's men would head into the break level, though, as Willian curled home a stupendous free-kick on the stroke of half-time, although Porto were back in front just seven minutes after the restart as Maicon steered home a corner from an unlikely angle.
Diego Costa was left incensed in the closing stages as his flick in the area appeared to catch the arm of Ivan Marcano, but the referee didn't appear to have a good view of it and waved away the furious appeals as Porto held out for the vital win.
The hosts started strongly and forged the first chance of the game after just two minutes, Brahimi beating two defenders with some smart footwork only to fire straight at Begovic.
Iker Casillas then had to be at his best to keep out Cesc Fabregas' 20-yard belter at the opposite end, while an otherworldly touch from Pedro set up a great scoring chance for the Spain international, only for him to get the ball stuck under his feet to allow the goalkeeper to rush out and save.
It would be Porto, though, who would draw first blood as Brahimi left Branislav Ivanovic for dead before firing at goal, and although the keeper managed to keep his shot out, the ball fell straight to Andre who smashed home on the follow up.
However, the Blues were not to be denied before the break and got themselves back on level terms with the very last kick of the half, Willian's curling free-kick leaving Casillas rooted to the spot before finding the very top corer of the net.
Jose Mourinho's men weren't level for long, though, as Porto regained the lead seven minutes into the second-half, Maicon getting ahead of Ramires to meet a corner at the near post, before stooping low to somehow turn his head home from the tightest of angles.
Begovic then had to be at his best to keep Chelsea in it after showing a strong wrist to somehow keep out Giannelli Ibula's piledriver after 70 minutes, while the visitors were desperately unlucky not to have won themselves a penalty in the closing stages as Marcano clearly handled the ball in the area, but the referee was behind the play and had little option but to wave Costa's furious appeals away.