Starting XI:
Begovic - 7
Probably Chelsea's best player - could have been so much worse without him.
Ivanovic - 2
What's happened to him? Short of confidence, skinned on numerous occasions. Poor delivery.
Zouma - 4
He has immense potential, but looked raw. Shouldn't be keeping Terry out of the team.
Cahill - 3
Poor. Was outfoxed by Porto's clever attacking players and didn't help his young partner.
Azpilicueta - 5
Best of a bad bunch in defence, but far from his consistent best. Needs to replace Ivanovic.
Ramires - 6
Never stopped working, as is his way. Earned the foul for Chelsea's goal.
Mikel - 5
Again, worked hard but nothing more. Looked understandably rusty.
Pedro - 5
Put in a shift, but didn't really contribute any invention or guile. Disappointing.
Fàbregas - 7
The one outfield player who showed real heart and purpose. Still, not quite on form.
Willian - 7
A 7 because he scored a wonderful goal. Never stopped running. There's a pattern here.
Costa - 6
Unlucky and frustrated on the night. No service. Hit the bar with a thumping effort.
Subs:
Matic - 5
Did okay but didn't really make much of a difference.
Hazard - 6
Often looked on the verge of doing something, but then robbed of the ball.
Kenedy - 5
Had a shot at the very death, nothing much apart from that.