#4 Mistakes cost Porto
The opening few minutes were actually pretty even as Porto pushed Liverpool. Both teams pressed when they didn't have the ball and as a result, we got to witness an end-to-end 20 odd minutes. However, the tie became heavily one-sided once Liverpool scored the opener.
In the pelting rain, Jose Sa, the number one over the legendary Iker Casillas, made a meal of a routine stop that crept underneath his arms. From then on, the hosts were always chasing the game.
While it's alright testing Liverpool's defence, it was a bit strange that Porto pushed so many men forward in the first half, trying to look for an equaliser.
Then just four minutes after the first goal, the Porto midfield and defence allowed James Milner to run into their penalty box. Milner had all the time and space to make a slalom run and get his shot away that struck the woodwork.
Manager Sérgio Conceição should have perhaps played a more compact approach as pretty much everyone knows how deadly Liverpool are on the break, something we witnessed in the second half.