Second half goals from Diego Godin and Arda Turan gave Atletico Madrid a 2-1 win over Porto.
With Diego Costa suspended, Diego Simeone handed a start to Brazilian youngster Leo Baptistao, taking his place up front alongside David Villa. Raul Garcia meanwhile came in for Koke who also found himself on the bench.
It was the Portuguese side though, who starter the brighter of the two teams - Silvestre Valera having an early attempt saved by Thibaut Courtois.
It was an open encounter to the match however, and the Rojiblancos soon come back with a chance of their won, but Baptistao couldn’t hit the target from long-range.
Jackson Martinez soon showed why a host of major European names were after his signature in the summer, as he got on the end of a Josue cross to head in from six yards and give the Dragoes the lead.
And even after their early goal, Paulo Foseca’s side weren’t abating as they pressed a tired looking Atleti for a second. Varela, once again, went close, but Courtois wasn’t troubled by the wayward effort.
The capital club weather that storm though, and from nowhere came back into the game with a late burst of possession and chances – the best of which saw Raul Garcia hit the bar from a late Gabi corner.
After the break, Simeone’s boys came out with a renewed vigour and equalised on the hour mark thanks to a Diego Godin header.
The visitors were knocking on the door now, and almost got a winner late on, but Arda Turan’s low effort was saved athletically by Helton.
But they weren’t made to rue that missed chance, as the Turkey international was played in cleverly by Gabi on 87 minutes, and finished coolly to complete a turnaround
Porto 1-2 Atletico Madrid
Scorers: Martinez 16 (P); Godin 57 (AM), Arda Turan 87 (AM)
Porto: Hélton; Danilo, Otamendi, Mangala, Alex Sandro; Fernando, Josué (Lica 61); Defour, Lucho (Quintero 68), Varela; Jackson Martínez
Atletico Madrid: Courtois; Juanfran, Miranda, Godín, Filipe; Tiago, Gabi; Arda, R. García, Baptistao (Koke 75), Villa (Rodriguez 45)
Play and compete for prizes in the world's most entertaining Fantasy Football Game. Select your favourite players from Europe's top 5 leagues, including Messi, Ronaldo, David Silva and Pepe Reina.