Chelsea suffered their first defeat in this season Champions League fixture as on Tuesday they were beaten by FC Porto.
The home side were looking aggressive since early minutes as they put on an attacking display since kick off.
Porto's positive approach was rewarded when Andre Andre puts them ahead on 39 minutes.
However, that lead was canceled out just before half time break when Willian equalized for The Blues.
After the break, both teams continue to search for goals, but it was Porto that got the winner through Maicon on 52 minutes.