Roque Santa Cruz scored

            The 20-year-old playmaker, who earned his first full cap for Spain in February, showed remarkable composure as the tension threatened to overcome the Champions League debutants.With the game finely poised following Porto's narrow lead in the first leg last month, both sides seemed more determined not to concede the crucial opening goal.  Porto's hopes were not helped at half-time when influential playmaker Joao Moutinho was forced off with a troublesome thigh injury.And they made their job even harder four minutes after the restart when Defour picked up a second yellow card for stupidly tripping Joaquin as the winger glided past him. In a frenetic first half, there were more yellow cards that shots on target with a rash of cynical tackles disrupting the action.But Isco provided a rare moment of quality to change the tie just before the break. He turned neatly on the edge of the box before curling a delicious shot over the stranded goalkeeper Helton.
               Argentine striker Javier Saviola had found the back of the net five minutes earlier for Malaga but his effort was controversially ruled out. The visitors retreated to the edge of the box as Isco and team-mates Manuel Iturra and Joaquin teased and probed although Malaga struggled to create any clear-cut chances.That was until they were finally ahead for the first time in the tie in the 78th minute as Santa Cruz rose highest to head home Isco's outswinging corner.